Having lived in Singapore for nearly a decade, and lived in China, Thailand, Malaysia, and pre-CoVID Hong Kong, before returning to the US, I can say with absolute certainty that Singapore and China are far FAR different...in execution and intent if not structurally.
As Allure has mentioned some of the government's decisions and authority can be seen to be dictatorial by virtue of the amount of authority the PM and the associated office have to enact change.
In my time there I found this to be a good system however...at least for Singapore. It would NOT work here in the US. Most of this is due to the vast difference in size...the entirety of Singapore's population is barely bigger than the Phoenix metropolis, and with a smaller land mass. This means that if there's an accident on Raffles Blvd, there will be new signage, and additional safety measures taken within a few days in Singapore to ensure it doesn't happen again. They capitalize on, and implement new technologies quickly...I had 2gb fiber in Singapore years before 1gb was available residentially in the US...because they are willing and able to make broad decisions very quickly (in that instance, creating a government organization who owned the fiber and was mandated to have it widely available across the island, and servicing it was handled by one of a few national telcos).
It wouldn't work here...someone will complain about how small the fiber is and why bigger things are better, or why the internet was bad for our youth in general and should be banned, or we'd push the contracts to install it into a bill that also included an additional appropriation to feed the war machine and it will be stuck in committee for a decade, before dying on the vine.
This same quick decision making is only theoretically possible in China...because every decision made is viewed by different groups with the same self-interest that US states tend to operate with, a LOT of time, money and energy is spent ensuring that regardless of whether a decision is made or not, it won't be politically damaging to party and politician, as opposed to making decisions based on what might be good for the nation, and the strictures of the Communist process ensure that getting ahead means being corrupt to some degree.
The woman I rented from in Singapore lived in Beijing and her family, making more than they'd generally be allowed to keep, had been funneling money into real estate in Singapore, Thailand and Vietnam for years and owned dozens of properties worth millions each. On paper, at home, they're just good loyal citizens who live only a bit above average.