It would be if Russia was allowed to participate in regular trade.
But the current USR/RUB rate is heavily influenced by the fact that many Russian entities are under sanctions.
To get slightly poetic, this creates a "water, water everywhere, nor any drop to drink" situation. Russia is accumulating foreign currency, but it cannot spend it to buy what it needs.
If the sanctions are not removed, the economy will slowly get worse and then experience a sudden drop off.
Because Russia's economy is highly specialized, it depends on components purchased abroad. But they cannot be purchased abroad anymore.
For example, here's an example of a Moscow State University economics professor mentioning that this will have an effect on Russian
- car repair
- car manufacturing
- aircraft maintenance
Sorry, it's a Russian-language interview. But if you are that interested in Russia, perhaps that's not an obstacle for you. Otherwise, you can get a translation by turning on "CC" and changing the "subtitles" setting to "English."
Here she specifically mentions that some manufacturing will shrink.
Further in the video, she also mentions that Russia's ability to plant 2023 harvest will depend on Russia's ability to buy seeds. And its ability to buy seeds will depend on "situation in Ukraine" (a euphemism which she uses for Russia's war against Ukraine, since she is subject to Russia's censorship laws).
Currently there are still stockpiles of components, seeds, etc.
But as time passes, the inability to purchase them will cause domestic production to either stop or to switch to make-shift local parts. Since make-shift parts are usually worse than parts produced by specialized manufacturing, the manufacturing using local parts (where they will be available) will be of worse quality.
This will mean less manufacturing overall and lower-quality manufacturing in most areas which remain. Those are not indicators of a stabilizing economy.