Russia is still able to continue on because of the military help from China, as US has confirmed [1]. Russia's missile barrage on Kharkiv right now is possible because of China. However, China won't be able to attack Taiwan while massively supplying Russia. And this will further drain China. When Russia is defeated, China will be scared even further about attacking Taiwan.
[1] https://www.theguardian.com/world/2024/apr/12/china-supporti...