Xbox one x Hong Kong, game disc from US, game language to Chinese?

So i tried again. Halo installed in Chinese (in-game text and voices) properly, so that one is fine.

Call of Duty apparently had no option to change the subtitles language at all.

Far cry 4 had the option to change subtitles language in the game menu, but chinese was not one of them.

Both Call of duty and Far cry 4 are available in the Hong Kong app store. But there is no way to know rhe supported languages in the app store. If i buy it from the hong kong app store then would the games get installed in their chinese versions?

I am assuming that that all the games in the Hong kong app store would support chinese, at least with subtitles. Is that an incorrect assumption?

This doesnt really help though. I live in Hong Kong as an expat and everything on xbox is in Chinese Characters, and Im pretty sure that Hong Kong uses English as one of its official languages (there is a huge expat community here). Is there really no way
to change the language?

About Far Cry 4 I found this article: https://steamcommunity.com/app/298110/discussions/0/616187839200249568/ Try in game language settings. For each game.

Found
this on Hallo Master Chief.

Maybe games themselves doesn't support Chinese. Some games allow changing language, others not. It depends on your region and language settings. Have you tried to check games language settings? Buy the games in your region. Even then, some may not support
Chinese. Wich they should because China is such a big market. Hong Kong especialy.

I tried these ones so far: call of duty advanced warfare, halo, far cry 4

Is there somewhere i can check if a game supports Chinese?

Thank you!