Study: No evidence that Chinese playtime mandates reduced heavy gaming
nature.com
nature.com
Children can recognize that there is no major harm in playing games. Being forced to follow irrational rules leads to non-compliance.
Rules around nicotine, drugs, and gambling do have a rational basis and do cause real harm. And for many people explaining this is effective in helping compliance.
The question whether bans work for everyone or not may also be semi irrelevant in this context. Obedient people following and perpetuating party rules (you know the kind who could play Xi's teachings to their unborn children etc.) will obey and they are desirable to reproduce. If others spend time gaming and self select against reproduction it's probably not too bad for the party.
Your best bet is to take gaming and to change it subtly to produce a more useful result. Eg teach things through games. Just don't overdo it on the teaching part, because then it stops being a game.
what about your parents/friends/peers in society being ashamed of you/looking down on you for gaming too much?