Knowing other languages isn’t a problem for me. The difficulty is finding stuff I like online in other languages. I am mainly a YouTube person, and I have the ones I like. Most are in English, though. I’ve tried expanding to other languages, but to find stuff I like (and can comprehend) is not easy. A subset of a subset.

Edit: as for Lemmy, it’s mainly where I go to waste some time. Rarely ‘Time Well Spent’, I just check whatever pops on the main feed at default sort. Best community is probably AskLemmy, where I can ask people stuff. But other than that, nothing I’d particularly seek in specific