If you’re using YouTube then install the FreeTube client - it’s a better experience I find although you need to manually import your watch lists. But avoids advertising and is much more private.

You can also install software like Jellyfin to stream from your own video library. You can also install Kodi to access your own library or streaming services with a nice big screen interface (Kodi is perfectly fine for accessing services you pay for - it’s not a piracy tool unless you make it one. I’m in the UK and use it to login and watch BBC Iplayer).

Honestly, it’s a full PC so with a bit of tinkering you can get it to do what you want in desktop mode and slickly.