China may arguably have done a better job at the collective response to the virus than the west at the start of the pandemic (though with measures that probably wouldn't been seen as acceptable in liberal countries). So there they might have had reason to brag that their authoritarian system works "better", for some definition of better.

But now their zero covid policy seem to be largely symbolic and to save face - you (probably?) can't lock down Omicron. Should have spent the time they won with their good initial response to increase immunity levels in the population.