I really wish there were options like this for mobile (iPhone specifically). Most of my YouTube browsing is done on mobile or chromecasted.
I go through phases of deleting the app, which works really well, but then I’m not able to chromecast for the odd time I want to watch the occasional video with my partner.
I’d also still like to be aware of when videos from certain creators come out, so deleting the app just cuts that off entirely.
I would absolutely love to have an option for a YouTube app that only has a sub box and no recommendations.