So much this. I also hate the implicit assumption that everyone understands just one language that's baked into this kind of design. I can comfortably read in four languages, and naturally prefer the original language to (typically) bad localization. So your guess at what language I would prefer based on my IP is virtually guaranteed to be wrong. Seriously, just look at what languages I'm already telling you work for me. There's no reason to assume I'm not smart enough to correctly configure my browser's language settings.
It gets even worse with YouTube and their awful AI dubbing that's always on by default. So now for solidly half the videos I watch, I need to (1) open it, (2) click through the settings to turn off the AI dubbing, and then (3) rewind back to the beginning and start over. It doesn't take a lot of time, but it's incredibly annoying.
YouTube‘s AI dubbing is truly awful. It took me 5 minutes to realize the audio I was hearing was coming from the video itself, and not some random ad in a different tab.
I also don‘t like that video titles are shown translated. It‘s so weird when I‘m watching a video in spoken English, yet the title is in a different language.
It's especially painful since they don't translate all subtitles.
I'm french, but my browsers are configured for English. Some (but not all!) english titles are translated to french, and some french titles are translated to english. This actually caused me to miss a few uploads from channels I'm subscribed to, as the language of the title is part of my mind-filtering for those channels.
I even have Spanish set in Google as one of my known languages and it still auto translates everything to English. I'm not fluent in Spanish, but one of the well known good ways to get there is to consume native content, but YouTube makes that hard.
It gets even worse with YouTube and their awful AI dubbing that's always on by default. So now for solidly half the videos I watch, I need to (1) open it, (2) click through the settings to turn off the AI dubbing, and then (3) rewind back to the beginning and start over. It doesn't take a lot of time, but it's incredibly annoying.