I think youtube-dl (and the somewhat popular fork yt-dlp) can do this. You don't have to be an expert on "web stuffs" to benefit from it -- the very active com

I think youtube-dl (and the somewhat popular fork yt-dlp) can do this. You don't have to be an expert on "web stuffs" to benefit from it -- the very active communities around these tools are doing that research for you! -- but you do have to install software not through an app store, a skill that I hear quite a few people aren't picking up these days. Despite the name, youtube-dl includes code to support downloading videos from hundreds of different web sites.