China has repeatedly demonstrated 2 things WRT Taiwan. They're patient and they're serious about their red lines.
I can't recall a single instance where China announced anything about Taiwan that wasn't reactive. They just keep repeating the "one China" policy.
Their official stance is that there's no need to invade Taiwan because Taiwan is already part of China and they reserve the right to use force to enforce their territorial integrity.
The practical manifestation of that policy has been that China and the US both get to pretend that their view on Taiwan is the reality and nobody will do anything if the other side doesn't rock the boat.
Their red line is a formal declaration of independence by Taiwan. As near as I can tell, all but one of their "military exercises" has been in response to actions that get close to that line in diplomatic terms https://globaltaiwan.org/2024/10/chinas-military-exercises-a...
During many of those exercises effectively blockaded Taiwan. They did that for a week after Pelosi's visit and they experienced no pain in response.
I draw 3 conclusions from these observations:
1) China will not invade Taiwan without some external stimulus
2) China is prepared to blockade Taiwan in the event of any attempts at secession
3) China has established that secessionist behavior is casus belli for a blockade in the eyes of the international community