Taiwan has very good defenses. They have artillery hardened and set to cover the few beaches where anyone could land. They have pipes underground to pump gasoline to those beaches. And much much more. Taiwan is no pushover
Chinese troops need counselors when they spend a week in the field. Their troops are called “little princes”. Also the Command echelon allows no decision making capacity to even Regiment leaders, much less company commanders
Any invasion would be a bloodbath for China.
As I stated above, I believe in authoritarian societies, the miliitary is limited in this respect because it is ingrained from birth to what happens when and individual exercises his own initiative. That is discouraged.
It doesn't necessarily mean a military is going to be "bad"...it just means that they cannot realize their full potential.
It is a form of waste endemic to collectivist societies, and by nature, it infects their militaries.