to be honest YouTube has great content because of the video length allowed. You can find all sorts of tutorials on pretty much anything. Instagram and TikTok, on the other hand, fits your description much better.

That entirely depends on who your subscribed to. Personally all my stuff channels like Numberphile/computerphile, or SmarterEveryDay, and plenty of Blender3d tutorial channels, animators, and a whole bunch of other informative channels.

While YouTube, or any service, has bad users/channels, there are also many great users/channels for people with varying interests to enjoy. You can ignore the channels you don’t like, and get to watch some of the best content from regular people you’ve never heard of, who aren’t major television studios or corporations with an agenda. All they want to do is make videos of things they are passionate about.

This. Can’t really understand YouTube addiction. I’m not exaggerating if I say that I watch, maybe, 2 entire videos per year.