For that supposed 20% he reinvigorated NATO (prior to the full scale invasion countries started questioning if we still need NATO), got EU to increase defense spending and got Finland and Sweden to join NATO.
Don't you see how this works both ways?
He measured NATO's response, he found a way to fight wars and not break (in the sense of popular outrage at loss of life and economic effect) for Russia, and which categories of population can be recruited for money and which shouldn't, he confirmed that the resource exports money source can be reoriented to other countries than the West, and he made unofficially NATO-aligned countries officially that.
EU's defense spending increasing is at the expense of other things.
They also proved they’re a paper tiger and their arms manufacturing is crap. Oh and of course sanctions and the war completely wrecking the economy.
They proved that to themselves too and reacted. Changed the military doctrine, evolved new tactics and strategy, built new MIC production chains. Russian army was inexperienced and thoroughly rotten, now it's not. Russian weapons were expensive and untested, now there are cheap drones of various kinds produced on scale and used, well-tested and constantly improved.
The economy is not completely wrecked. It really seemed to be going there many times over these years. Some of the people who told me it's going to crumble are professors. It's not even approaching that anymore. I live in Russia.
People working in the Russian Central Bank are very competent. One can talk and talk about good and evil, but their work has been perfect basically since 1999 till now. And people making actual decisions too understand a lot.
It seems intuitively (incorrectly) that the way Russian society is built, with its inequality and injustice, it can't bear a big war. But if slaveholder agrarian societies and feudal societies could fight wars with their plutocratic contemporaries, then Russia's mafia feudalism can fight Western societies. Which are honestly too slowly changing to mafia feudalism ; perhaps some will flip to fascism.
Considering what all those western nations have shown themselves, I'm honestly not sure there are good guys here, and if there are none, then I'm kinda almost feeling patriotic. But I don't understand why Putin had to invade Ukraine, Zelensky was fucking elected because of his promises to make peace and restore ties, and for the national interest it made much bigger sense to just do that, Ukraine would still be naturally dependent.