Earlier quoted context omitted.
I actually have a filter by language it's the last one in "Filter By" list. The website does try to guess your language based on your IP, but you can change it and it saves your setting.
I didn't notice the filter list can be moved. When it moves, I expect a on the dices or a scroll bar at the bottom. But I think both methods are considered "old" design now. I got automatically English and Spanish. I thought it was a coincidence that I saw only post in those languages, but now I see there are more posts.
Gotcha, thanks for the feedback!