How to download? Here’s an example:

Open in Firefox: https://chessmood.com/course/opening-principles/episode/5522

Right click on the video => This Frame => Open Frame in new tab

New tab will show vimeo URL: https://player.vimeo.com/video/655650979

Copy and paste into Vimeo Video Downloader

Very good site. Fine analysis. However, very high monthly price for regular users.