RobotDaniel

would recommend https://addons.mozilla.org/en-US/firefox/addon/youtube-addon/, idk if 100% of the features you mentioned are on there but worth a try

This is exactly what I was about to comment

I host a nextcloud sever (snap) and a minecraft server on a laptop I no longer use

This is exactly why we need Mozilla, this is kind of stuff what makes them the default in the open source community.