SkyTube Extra has Google Cast support, but make sure to download it from GitHub (e.g. through Obtainium). The F-Droid version doesn't have the cast feature, because it depends on a proprietary Google library, which is not allowed on F-Droid.
Andromxda
Just find a good instance like piped.adminforge.de or host your own
Brave apparently wants to do that, but it's not a great long term solution. The feature should actually be supported upstream, that's why Firefox is a much better option, and a better base for a fork to create a new browser.
AI is a cool feature, which makes a great excuse for proprietary corporations to spy on their users. I'd say it's one of the best opportunities for an excuse of the last few decades. Only 9/11 was a better excuse to put everyone under corporate/government surveillance.
Your average Joe Schmoe probably has no idea that different operating systems
But I don't think that these are the people buying a Framework Laptop
Yes, Microsoft is such a trustworthy company, they will definitely respect your opt out. 100% sure about that, I mean, they would never spy on their users without telling them. God damn, how foolish do you have to be to believe in this bullshit?
- create a monopoly on operating systems
- leverage your dominant market position and force everyone to use your spyware
- big profit
There's also invidtui, which uses the Invidious API. You can simply use it with your favorite video player (e.g. mpv or VLC). Invidious is also very light on resources, so you could host your own instance. Even locally on your machine using Docker. Or go with youtube-local.