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.