For me personally it’s easier to watch a video than to read a blog post or whatever these days. That’s mostly because I can listen/watch while doing chores. However, if I need to use it later there’s just no way I can find it or find what was in it. I like the format of Theprimeagen in particular when he goes over blog posts, I can always refer to that when I want to. So I’d say:
videos as a replacement for written media: no
videos as an addition to written media: yes
I think Supabase does this well. The documentation is there, videos are more specific and lengthy