Only 42%?
HK has always been a place everyone wants to make as much money as they can before leaving and retiring somewhere because of the cost and the quality of life. So without comparing with surveys did before 2018 its not really that informative.
I left on October 1st. I'm glad I did.
Unfortunately, I'll have to keep coming back to HK over the years but I'm hoping not for a few months and when quarantine rules have relaxed.
It seems you live in some kind of bubble. Ask any local school if their numbers are the same as 2018, heck ask any local community because everyone knows people now who have emigrated. Scenes like the huge lines at the BA check in gates, and the check-in line lady saying "everyone wants to leave HK nowadays" simply did not happen pre-NSL in HK. Also, as opposed to expats ,locals are not leaving because of the crazy quarantine rules, but because of NSL and the CCP takeover.