I'm not convinced the equivalence you mention - "aggression from both sides" - is really there. The current Taiwanese government's only stated goal is to defend itself; there is no serious surviving political will in Taiwan to attack China.
China could attack Taiwan (particularly Matsu and Kinmen), but an attack on the mainland also appears less likely these days, given the very real chance of humiliation a la Russia in Ukraine.
China could attack Taiwan (particularly Matsu and Kinmen), but an attack on the mainland also appears less likely these days, given the very real chance of humiliation a la Russia in Ukraine.