your point about logistics is spot on. if the US were to intervene, their best bet is to attack PLA logistics while its force is engaged on the island, this is another reason why I advocated for taking penghu and other islets.Logistic and total air superiority.
Once landed on the island, PLA got no place to retreat. If logistical chain is disrupted, it will be gameover.
I don't expect ROC army to fought like Ukrainian. Yes in the past but fighting capability of Taiwanese forces was cripple by domestic politics in the last 20 years.
Still PLA can't afford to be complacent. Human reacts different if their survival is at stake. To migitate the problem, China should offer the Taiwanese an attractive alternative prior to 'invasion' after the island return under her rule.
Never overlook the importance of psychological warfare. And the ability to communicate effectively is one of the weakest link for China.
russia's experience in ukraine also shows that even if the attacker seeks a quick decisive battle, it must also be prepared for a drawn out battle. this will also include precautions to isolate the theatre with or without carrier battlegroups.