As I wrote in an article a few weeks ago, Russia doesn't need to be strong in order to conquer Ukraine and then by invading the Baltic nations trigger the collapse of NATO (because NATO won't fight Russia - its generals know there's no political will and that all the lessons learned by Russians in Ukraine would result in NATO forces being massacred). Xi knows very different conditions apply to his forthcoming invasion of Taiwan - it's more logistically complex but far easier from a military perspective. So I don't think China's invasion plans are radically altered by Russia's experiences in Ukraine but rather are being refined and updated accordingly. My money is still firmly on Xi ordering the invasion between 2027 and 2029 when the mindless sniveling creature Trump is back in the White House and can be guaranteed to be even more spineless and appeasement-oriented than the dithering imbecile Biden.