So, given AI is destroying YT, if you’re any sort of a creator at all, even if you just have some random posts from years ago that you uploaded with no intention of getting popular, you really should move your stuff to PeerTube, ideally on a self-hosted instance if you have the hardware to spare, while you still can, because things are only going to get worse for YT.
Even Odysee is a decent alternative if you want more traction, but PeerTube is more ideal as an alternative platform due to having the ability to self-host an instance there and have complete control of your content and presence down to owning the infrastructure you’re posting on.
Nebula is awesome and is one of many paths that lead away from Youtube. I like and recommend any and every path that leads away from Youtube. The more paths away from Youtube there are, and the more that get taken, the better. Every creator should explore as many of these paths as they can.