Can't even get 4K on most streaming services on macOS now... It's not just Linux anymore.

Netflix lets you in Safari[1]; Disney+ limits you to 1080p[2]; and Hulu limits you to 720p[3].

[1]: https://help.netflix.com/en/node/55764 ("Mac computer with an Apple processor or Apple T2 Security chip").

[2]: https://help.disneyplus.com/article/disneyplus-video-quality ("Please note 4K streaming is not available on computer browsers").

[3]: https://help.hulu.com/article/hulu-video-quality ("Hulu.com streams in quality up to 720p").