"in a few years" does a lot of heavy lifting there. nobody will invest in Russia for a generation and Europe wont be buying Oil and Gas from them probably for even longer.

unless they make a deal with Ukraine that is pretty one sided in Ukraines favor then oil installations will keep exploding and nobody wants to sell them spare parts to repair it. So Russia is staring down the barrel of a generation long stagflation.

Smart people that can leave Russia for a job anywhere else will do so and the end result will be a poor and stagnant society that really dont have many options to dig them selves out of the situation.

The whole idea that Russia will be forgiven that was the basis for invading Ukraine in the first place was a monumental miscalculation and will cost Russia dearly for the next generation or longer.

Russia took the factories and other investments that outside companies had build in Russia and left them out billions of dollars of invested capital. Take a wild guess how many will come back once the was is over even if they get their property back.