As for a YouTube app, take a look at mytube. The Dev very recently released a complete overhaul of the app and while I wasn't a huge fan before, it is now the by far best YouTube app on the store imo.
Already does fluent design (acrylic) and is very actively supported. Just days ago it added 360 support for example which I think no other app does. It's really good.
Already does fluent design (acrylic) and is very actively supported. Just days ago it added 360 support for example which I think no other app does. It's really good.