I think the CIA/western media infiltration of Hong Kong is something that caught China offguard.Hong Kong and Macau returned to Chinese sovereignty from the Brits and the Portuguese respectively without wars, conflicts, or bloodshed - I can't see why the same can't be achieved when it comes to Taiwan. People forget Xi Jinping met with then President Ma Ying-Jeou not so long ago in 2015, and relations between China and the KMT were warming up until the DPP came into power.
With Tsai Ing-Wen's polling numbers in decline as a result of the DPP's handling of a crippling drought, electricity blackout, and setbacks with the current COVID surge we might just see a shift in Taiwan's politics when the people there see who that Tsai's "regime" doesn't have their interests at heart, and some form of reunification (whether Taiwan becomes China's 35th province or some sort of Special Administrative Region like Hong Kong or Macau) with the Mainland is achieved.
It did a lot of damage to China's image among Taiwanese that I think will take many years to recover. The DPP are really good at making use of fake news/negative press