If it's harder to use than Dailymotion, Odysee or Rumble, most people won't use it. Creators, certainly, won't consider it. The thing that made YT, Dailymotion, Vimeo, etc., big is that you didn't have to necessarily worry about the "hard stuff". You just shoot the video and push the upload button.

PeerTube needs more instances with the push-button option for creators to adopt the platform at first. The big challenge is, no matter what you do for compression or P2P or whatever-have-you, someone, somewhere, will have to pay for it. If it's not creators, it'll have to be either the viewers (not happening when the platforms listed above are free-to-watch), advertisers (not happening if the user base is too small and the content isn't brand-suited), or sponsors (not happening if the user base is small and made up of free/libre/pirate enthusiasts). That's part of the issue with PeerTube's adoption and I don't see a way to overcome it. We need an equivalent to mastodon.social or lemmy.world for the video side of the fediverse. Trust that creators and communities will break off, but have a canonical location with very few limits. Preferably you also would prefer that said canonical location doesn't defederate from anybody.