M.O.D.O.F.K.
you have to get the widevine l3 key and download the encrypted audio and video, decrypt the files, then join the video and audio together. It's a pain in the ass, here's the guide if you really care to get into it though. There may be extensions that do it automatically but I didnt look too hard, just did it manually to see if it was possible. This way you get the source files at least instead of having to screen record.
