However, there might be a wildcard hehehe, China. Might the western allies’ avoidance of war vs. Russia encourage China to invade Taiwan? I speculate the western allies might not have a choice. If they send their military in Ukraine, China might join the war and invade Taiwan. If they do nothing, this might encourage China and invaide Taiwan.
I don't think it has anything to do with being encouraged or anything. If China invaded Taiwan last week, the outcome would have been exactly the same as if they invade it today or any other time.
The thing is that no country in history has ever tolerated the "enemy" having a permanent military base or proxy right under their nose posting increasing threat to their national security. They all do
something about it, sometimes it is diplomatic, sometimes "other means" and when nothing works with invasion.
Mark my words, in near future we are going to see a couple of more cases like this. I won't get into details but you can't imagine how terrible it is when seceded territories that are barely 50 years old are becoming a threat to your national security.