Not sure about Facebook since authenticating for private videos is a hurdle, but for my partner who uses a mac I downloaded open video downloader which is just a foss GUI for ytdl, it also keeps ytdl up to date which is a requirement for me since I don’t want to be called when it stops working. I think on windows you have to manually install msvc2010redist but besides that it seems to just work out of the box.
I don’t even make decaf espresso after noon-ish.