On Android, I disabled the YouTube app and use Firefox for YouTube, entirely because of the shorts. It lets you remove the shorts for 30 days in the browser. I did have to switch text messaging apps because the default option wouldn't work without YouTube enabled whenever someone sent a YouTube link.
It's indeed infuriating how these services try to cram TikTok style crap down our throats.
The stupid thing is: they try to get more popular than TikTok. How the hell do they expect to become popular with users that don't want this stuff? I'm not on TikTok, I hate YouTube shorts and Instagram reels. Just allow me to turn that shit off and I'll be a lot happier and use the service more because it's not pushing me away.
How do they think forcing it on unwilling users is in any way beneficial??
My biggest beef with Shorts is that it's the equivalent of having the shelves full of lollies and junk food if you're trying to be healthy; it's far better not to have any available if you want to stay lean.
I love long form YouTube videos as much as I loathe the short form, whose promotional algorithms are skewed towards content that's rubbish for the brain - and society.
Edit: On Samsung Internet, could browse to the mobile app and indeed hide the shorts for 30 days (little X in top right of Shorts content panel, not a setting). Furthermore, if I disable "open links in apps" under settings/useful features, I now get the YouTube icon to open the current video in the app - this lets me browse for videos without being bugged by Shorts, and I can then open in the app if I want some of its features such as play in background etc. Thanks again, great tip.