Despite its huge population and stable economy, China can't simply afford to wage a major war. Human life has become more precious, as the Russians have just found out. Many of the families have just one child each nowadays and they don't want to sacrifice their children in needless wars. And in China, the situation is more exacerbated as a result of the one-child policy. An invasion of Taiwan will cost China millions of lives and there is no way the country can afford that. It was possible in the 20th century, but definitely not in the 21st century.
On the near side of Russia, there is a war going on but not on TV news. Azerbaijan vs Armenia. Pelosi also visited Azerbaijan after a massive attack on Armenia where almost 200 people I believe were dead. The war was also about the contested border region which is Nagornokaraba.
China vs Taiwan tension I guess is dying despite US ships passing thru Taiwan straight, China didn't engage.
If war erupts, Asia will really be disturbed. China has more influence and economic disaster will affect all its surroundings.
They do not have feet on the ground, but they are funding the war and also giving specialist support on the military side. 
