The Real How-To: Download private VIMEO or MANYVIDS or other videos (like from Patreon)
There are multiple how-tos on this topic (downloading videos from sites like vimeo.com, manyvids.com etc.) that do not work which you probably already clicked on. Check out this one: it works :) Of course, you can only download videos that you can also see or open in your browser. Blocked videos or pay to play will remain dark.