Their handling of COVID was not proportional and caused a lot of harm. Not that the US president at the time did any better.
From everything we know about China, there is no succession plan, so I guess no one knows what it will be like, but the odds are it won't be as stable as it is now. I hope I'm wrong.
Succession is going to pick someone from standing committee, i.e the candidate pool is known, and the pipeline to that pool is known. At minimum it's going to be a career bureaucrat with decades of experience, and with anticorruption drive, likely clean candidates even if it skips generations. What they won't have is miscellaneous candidate with unknown governance ability parachuted in on popularity vote.