on IOS I’ve found the mobile web page to be legitimately better than the app, I can do Picture in Picture and listen to it in the background, things the app won’t let you do without paying. For a while it also let me get rid of the shorts shelf, which the app just had no option for, they got rid of that a few months back, but I’ve found that if I mark “not interested” on any shorts it puts up it hides it again for a while.
Also if the ads are getting a bit much I can open it in fire fox focus and I’ve found it block ads completely, I’ve heard from others that Firefox focus doesn’t block YouTube ads for them, but, I’ve never seen a YouTube ad while using it.
Honestly, in general, if something has a web page, I won’t use an app at this point. I’ve had so many experiences with dedicated apps just being worse experiences.