I must be immune to their algorithm because, even with an account, multiple searches and 1 hour of use, I didn't get a single video I wanted to watch. YouTube works way better for me. I might simply not like short form content.
Also, 1 hour without an interesting video is something I've never experienced on YouTube, even on new accounts (I create an account for new TVs). I think I'm simply not their target audience.
I couldn't even understand the point of 10-20% of the videos, like "What is this video trying to show here? A random person saying the word banana in a loop"
The point of no return was precisely the introduction of the smartphone because it lowered the amount of energy necessary for someone who doesn't care about technology to interact meaningfully with it. To this day most people don't own a personal computer unless they need it for work. But almost everyone has a phone.