Also, since back when I last looked for youtube alternatives, many that seemed good turned out to use things like NFT and the sort, I feel compelled to ask:
Does it use technologies such as that, or are its instances just plain usual self-hosted sites?
Peertube instances are self-hosted sites that happen to interact with the greater fediverse in general.
Depending on your file format and hosting situation, you can also host videos on your own site with a template HTML file.
That’s pretty interesting, the hosting with a template HTML file, tbh.
Take a look: https://drwho.virtadpt.net/video/hope-2020-panel.html
I just use a new copy of that HTML page with minor edits for each video.