Welcome to the conversation.
Not to be snarky, but welcome to the true frustrations against corporations. They view linux users (like you now) as pirating monsters, and in their eyes giving us even 1080 means that they're giving their content over to pirates. Which is ironic because I think that sort of behavior encourages pirating.
So it's nothing you did, nothing is broken, it's functioning as Netflix wants it to. It'll be the same with all of the other providers.
OP is talking about YouTube and I can watch 8KUHD just fine on Linux.
You're right, subbed in Netflix for some reason - but Youtube TV though acts in the same way, I don't believe they allow anything > 720. Free youtube is different, paid Youtube TV will throttle
Does changing the user agent work?
Pretending to be Chrome on Windows seems easy enough
Yes, there's an addon for Firefox that gives you Netflix 1080p without any downsides, probably just by changing the user agent for Netflix.
Really shows how utterly useless the restrictions are.
i use Freetube on my deck which you can set the default video resolution to 1080. works well in gamemode.
I second this. Also there’s a freetube flatpak so it’s the logical choice for me
I've got a legion go with Bazzite installed and now I'm curious. I'll boot into windows after I boot into Bazzite and see if there's a difference. At least then you'll know if it's Linux or YouTube.
Edit: So for me (granted I'm not on a steam deck but on steam OS for another handheld), it defaults to 720p but I'm using Firefox in desktop mode, and I have the option to change it to 1080p but only if I use a mouse to have over the video and select settings from the progress bar.
In windows (on the same device) it works just fine, and I can do 1080p premium on Firefox from windows 11. So it may be something stupid like needing to use the track pad, or it may be how you're using Firefox in steam OS (as an app inside steam or some other way).
Edit edit: Randomly the sound quality is quieter in Bazzite (receiver and speakers set to the same volume level) than in windows, by a significant margin.
If Google search to see if is a Linux thing. Sometimes streaming sites limit resolution on Linux for some reason.
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