TL;DR: That largely depends on what you mean by "communism".
The general problem is that pretty much all of the "communists states" (which is btw an oxymoron) are variations of a doctrine called "Marxism-Leninism" which is basically Stalin's attempt to solidify the power that he had inherited/taken after Lenin's death by attempting to deify these two dead people and present a selected interpretation of their ideas and actions as some sort of gospel, which ended up being the blueprint for most of those kinds of revolution.
It often failed and the specific countries "amended" it later to the particular situation within the country, but usually the authoritarian seeds planted by Stalin were kept. So despite the seemingly large number of "different", "communist" states they aren't really an ideologically diverse set, testing out different ideologies, but they are rather clones of Marxism-Leninism. As such a lot of the terminology of what "socialism", "communism", "dictatorship of the proletariat" or whatnot refers to has been (re-)coined by this largest representative or tailored towards it, which often makes it stand in contrast to how predecessors and contemporaries have used it or how people continued to use it.
The thing is Stalin wasn't the only Bolshevic (Lenin's party), Lenin wasn't the only Marxist and Marx wasn't the only communist.
Yes, Marx isn't the inventor of socialism or communism, these terms had been around for a long time. Essentially the liberal and the industrial revolution had massively disrupted the socio-economio-political landscape. Previously the church as the keeper of all wisdom and moral, had served as the legitimization of earthly power (god given rulers) and the rest were basically meant to serve god and in his extension their land lords by working the fields.
Now science has taken shots at the "wisdom" of the church, philosophy took shots at the moral, economically the ruling class impoverished itself through wars and extravagance, the middle class of merchants and craftsmen demanded more from life than subserviency, the agricultural sector was no longer the powerhouse of the society, products were no longer unique but could be mass produced aso. So rule of an aristocracy morphed into rule of the bourgeoisie, feudalism morphed into capitalism, religiosity morphed into "progressivism" (believe in progress).
So basically all the great narratives that had been taken for granted for centuries had been dispelled. Though what remained is that an upper class ruled over a lower class, which actually produced the stuff. Though if the lower classes take the liberals claims of individual liberty, equality and self-actualization seriously, then something was still going massively wrong. And if that isn't the "natural order" or "god given hierarchy", then it must have some more earth-ly reasons. And they pretty early on made the observation that what makes you wealthy and powerful is the ownership of the means of production, so land, factories anything that produces commodities and consumables that you can exchange at fixed quantities of labor and which create a transfer of power in the direction of the gatekeepers.
So while making grandstanding claims of "democracy", "liberty", "social contracts", "self-governance", "equality", "solidarity" what they ended up with looked eerily similar to what came before. Like some middle class entrepreneurs ascended to nobility and some nobles descended to middle class and the theme of rulership changed. In effect "democracy" still meant that a small bunch of rich people decided the politics of the country while the rest served to increase their riches. And while populists to this day might claim that, in the early days that might have rang much more true, with voting rights based on income, no compensation for political duties (so no income, making it inaccessible for people without wealth) and so on.
So when Marx spoke about the "bourgeoisie" that might not have been just an economic term for rich people, but a description of a separate society, wielding, political and economic power.
And so given that everything seemed possible and things still sucked, lots of people came up with lots of ideas and how to progress. And those arguing that this hyper-"individualism" actually fails lots of individuals and doesn't account for the fact that the wealth creation is a collective process and who wanted to put the society/community as a whole more into the focus were called or called themselves socialists/communists or variations of that. Though these terms were often used synonymously, interchangably and their definition varied from person to person.
Even if they agreed upon the ownership of the means of production being the problem, the oppression by the state being a problem, self-organization being a solution and general virtues of freedom and equality. They might still differ as to whether everyone should have their own means of production or whether they should own them collectively, whether those collectives should be limited to the workers owning their particular workplaces or a co-ownership of the entire country, whether it should be through revolution, engagement in parliament, reforms, unionization, syndicalism, strikes. Whether the political liberation, the social liberation, the economic liberation or just better working and living conditions should be the priority and so on.
And given that for a century or longer none of that was ever closer than a short lived revolt from being implement anywhere there ended up hundreds and thousands of ideas on how such things could look like.
Now Marx largely wrote about that transitioning towards capitalism and how it works and how it would be overcome towards socialism/communism. He didn't go much into detail how socialism/communism would look like or how that works, because that would to be figured out by the people who actually live in those circumstances. He nonetheless co-authored a manifest of the communist party and got engaged in the international workingmen's association (first international). Where he got rid of the anarchist and anarcho-communist sections before the organization dissolving apparently also over Marx's support for the brutal means of the Paris Commune, which was itself brutally put down.
Still large got somewhat famous in his role leading the first international and tons of groups and people calling themselves Marxist if they had the slightest overlap of revolution and socialism, often to the dismay of Marx himself.
That being said for Marx the transition was still from the rule of the few to the rule of the many, so the goal was intrinsically democratic. Even the "communist party" and the "transitional state" were different from Lenin as the "communist party" was apparently anticipated as a mass movement of international workers. His rational was that the proletariat were or would soon be the largest faction in society and the one who is able to create a society of their own without subjugating others (as they know how to work the means of production themselves). So the "revolution" and the "dictatorship of the proletariat" wouldn't be a minority party spearheaded by a dictator but a majority demanding a democracy, with dictatorship being synonymous for "to rule". If I'm not mistaken he even said something like the most socialist act in his time would be if Britain got the universal suffrage given that he expected the proletariat voting en bloc and for their own interest as a class, as he perceived the capitalists had done already (though given their smaller class, class and personal interests might have been much more conflated).
Also afaik Engels explicitly warned with regards to the Paris Commune that it would not be possible to simply take over the state and modify the society from above, that this attempt has failed and that instead and organized majority needs to make the revolution and determine their future democratically, making the oppressive institution of the state withering away in the process. Though afaik they still argued in favor of a revolution and a new system rather than coercing the ruling class for better working conditions, yet keeping the systemic injustices in place.
So you had tons of socialists/communists making ideologies and utopian or pragmatic claims, then you had lots of Marxists taking close or loose inspiration from Marx particular version of communism. And then you have Lenin.
Apparently in 1903 he attended a meeting of the social democratic party in Russia (which apparently was an all-left conglomerate) where he, in the absence of any liberal revolution, parliament, democracy or any other chance to gain power legitimately, convinced a majority to form vanguard party of professional revolutionaries. In remembrance of the one time in his life that he got a majority in a free and fair election he called them "Bolshevics" (=majority). He wasn't really successful with that, burned through lots of fake identities, spend lots of time in Siberia or in exil, basically missing out on all the revolutions in 1905 and February of 1917.
Though the February revolution of 1917 made the czar abdicate and had a dual reign between a provisional government that soon became unpopular for continuing the war and a congress of soviets (soviet=councils) which were a representation of the worker and soldier councils organizing the revolution, which had popular support but no official mandate. Either way the new situation allowed for Lenin to return home and the German military high command was more than happy to escort a professional trouble maker to an enemy country.
Now the congress of soviets were still debating what should be done next, because Russia didn't even have a liberal revolution, so would a socialist revolution come to early. The thing is for Marx it was a historical materialism. So the agricultural revolution brought about the feudal system due to the necessity of organization, the liberal revolution brought about capitalism and with the industrialization the working class would be able to bring about a socialist revolution. Though Marx bought the liberal kool-aid of a superior subsystem developing within a system overtaking the main one. So without transitioning through capitalism and developing the material conditions any revolution would just reproduce the same system or worse regress.
So they were still contemplating if Russia was even ready for socialism, given that the industrialization there was still in the making. But while agitating for the congress of soviets he also made sure they wouldn't meet and actually answer that question before he staged a coup d'etat and took power in the so-called October Revolution. He then made a peace treaty with Germany leading to the allies attacking Russia for all the stuff they supplied them previously, while arguing that boundaries will be irrelevant anyway when the world revolution begins.
The Lenin made a free election and ... lost. He claimed power anyway and had a bloody civil war with lots of terror on both sides. After which he won and proceeded with NEP so some sort of capitalism light with lots of government control, before Stalin took over kept it for a bit and then transitioned to his own centralized dictatorship.
Though the concept of vanguard revolutions, centralizing production and trying to achieve industrialization within a country, not going for a global revolution and having the USSR as the sponsor and ideological center of this kind of bloc (before China would rival it after Stalin's death) became sort of a blueprint for how to make a revolution.
And "socialism" became synonymous with what these countries were doing and what they claimed to be a transitioning state and a dictatorship of the proletariat. Though rather a normal dictatorship and not really of the proletariat as the ruling party is often far removed from that both ideoligically from their lived reality and even physically. And communism being the doctrine of the party and the end goal, but which seems really hard to be achievable with this framework which pretty much goes in the opposite direction, again having a monarchy or aristocracy, a centralized state with no democracy and a population meant to serve their leaders. So apart from a psychological ownership, the means of production would still belong to a minority.