Is it possible China has their own website similar to itch.io and that's why? I'd look for it, but I don't know any mandarin so I wouldn't even know where to start
i think yes (based on "many small games, and anyone can upload games, and there is a community"), https://www.gcores.com/
but i usually use itch.io lol, i just found gcores.com some weeks, cuz my chinese friends told me about it