A lot of these alternatives allow you to keep track of subscriptions without a Google account and actually show a chronological feed (which IMO is one of the most annoying things about the official YouTube app). For mindless watching TikTok is my default.
I actually have tried to use TikTok a few times. However I live in a country where I'm not a native speaker and there is no way to set the TikTok region to anywhere except your geographic location. Even when using a VPN, reinstalling the app, and creating an entirely new account, it still knows exactly what country I'm in. That's scary enough to make me not use it much.
But I was bored so I figured, the algorithm is supposed to be good right? It should learn I want English videos pretty quickly.
Nope, I spent about an hour searching exclusively for videos in English, and 99% of all the recommendations were still in Vietnamese. I guess I should be grateful that one privacy invading timewaster is unavailable to me!