For certain values of exists. I would love to get off of YouTube completely, but until eg PeerTube actually gets a significant number of content creators to move over or upload in parallel, its going to be impossible to fight YT. It's a very chicken/egg problem.

Thankfully, YT keeps doing user-hostile things, slowly pushing more people into trying out alternatives.

You just need hosting. Then, you can embed the video in your own page like JonTron did with NormalBoots.

I know that’s a really esoteric example and I’m sorry.

I think this works very well for some use cases, but it misses out on one of the biggest value-adds of YouTube: discovery. YouTube allows you to find other related content; any competitor needs to provide something similar.