What you want is to just download the 10-20kb html file, maybe a corresponding css file, and any images referenced by the html. Then if you want the video you just get the video file direct.
Simple and effective, unless you have something to sell.
> unless you have something to sell
Video hosting and its moderation is not cheap, sadly. Which is why we don't see many competitors.
(before you ask: Vimeo is getting sold to an enshitification company)
And a decent list here: https://ideaexplainers.com/video-sites-like-youtube/
Not actually heard of the first two, what's their USP?
Twitch has the issues the other commenter described, and both Twitch and Facebook are owned by billionaires who are actively collaborating with the current authoritarian regime. Facebook in particular is a risk space for actually exercising free speech and giving coherent critiques of authority.
Dailymotion is... maybe okay? As a company it seems like it's on life support. There's a "missing middle" between the corporate highly produced content that's distributed across all platforms and being a long tail dumping ground. I did find things like university lectures there, but there isn't creators actually trying to produce content for Dailymotion like there is on YouTube.
So, just like Youtube, then?
What we don't see is more web video services and services that successfully trick varied content creators to upload regularly to their platform.
https://en.wikipedia.org/wiki/PeerTube also must be mentioned here.