@burgerdrome Same, but I've dug deep deep deep into the menus and now have VLC and SmartTube ( https://smarttubeapp.github.io/ ) installed as my default first row apps. SmartTube is really excellent, 1,000% better than the Youtube ad-infested default app.
And I've deleted everything else I can. It's not perfect, but a lot better than the rubbish it was stuffed up with. I also managed to install the Criterion app - that's the only streaming service we can be bothered to use. It does take a bit of fiddling; as a UX professional I can testify that those menus are not designed to be user-friendly; they're designed, I believe, to be a disincentive to users modifying the default UI.