by default bluesky sets the content language setting to the language it assumes u read/write, while this makes sense the big issue with this is is that creations by people from other parts of the world might not get seen anymore, lets say ur primarily english and ur content language gets set as so, u might never see art for example by japanese users.
a majority of bluesky users are clearly not aware of this being a thing, as warning posts telling people to change their settings pop up again and again, because of this i personally think by default no content language should get auto chosen at all, and the user themselves should opt in what languages they want to see on their feed if they really dislike seeing languages that they dont understand on their timeline (tho a built in translation engine could also just fix this bluesky...)