Well tbh I think a lot of Chinese are overqualified but underskilled, because they just go to university always, even if it is a bullshit degree and they waste all the time during collage.
With both tuition and living costs being affordable to all, along with parents viewing university as something kids should automatically apply to, it means a lot of barely skilled workers run around with less than useful degrees.
Imo if you are actually high skill, you'd never end up in these jobs except maybe a very temporary measure during your education. If you go to another country, you should have set up your entry since a long time before. Local connections, an equivalent job to your former job etc.