And if you're multilingual within "monolingual" countries, especially the US, good luck. (microrant: there's no such thing as a monolingual country, and the US has no official language!)

I've gotten emails from multiple bigtechs -- dropbox was one IIRC -- that were half in German, half in English. Or more relevant to Netflix -- your language setting for content has to be the same as your language setting for the UI. I'm sure to some people these things seem like nitpicks, but that's exactly the problem: treating language as an afterthought is such a profoundly middle class white American view. The vast majority of the world works differently, and most tech firms simply don't care. This isn't something trivial. It's a core part of how people interact with the world.