You know, I recently saw someone speculating that China would be ready for war in 2027 (as is their stated goal), but that they would go after Siberia rather than Taiwan. Taiwan is very risky (have to cross the strait, and who knows what the US will do?), but Siberia is more straightforward.
Well, if China is in fact thinking that, then China would love to keep the war in Ukraine going, because it weakens Russia.