My point is that just from .. on the ground "feel" and quality of life .. Hong Kong, Taipei and large Chinese cities are all at rather similar levels (each having their own pluses and minuses). And I don't see them growing at the same rate from here on out.
People keep predicting the slowing of growth in China, but it's not materialized (at least anywhere close to the degree the experts expected). Just over the period of the pandemic I saw personally a huge amount of development and growth in China, while virtually nothing in Taiwan.
I'm just skeptical that once you reach Taiwan's level of development it's some inevitability that growth stalls. There are serious structural problems here in Taiwan that have made it stall (bureaucratic, extreme protectionist trade policy with huge tariffs on imports, little entrepreneurial spirit, anemic art scene, weak work ethic, an extremely non-confrontational culture, etc.).
Similar to Hong Kong, a key economic driver was their function as a bridge between the West and China - but this has become mostly redundant now.
All good things must come to an end. China will stall eventually too, for instance they're getting incredibly bureaucratic now, but they still have some runway.