A few commands are listed below for reference on use of Youtube-DL, which is operated via terminal / bash (installed via homebrew on Mac).
% youtube-dl -F 'https://taibbi.substack.com/p/rachel-maddows-shocking-new-low-4a6'
That will show the available downloads where you an then use the following command
$ youtube-dl -f <pick the numbered option> 'youtube.address'
% youtube-dl -f 140 'https://youtu.be/W8v4wxy9xpU'
That will download the available .m4a file.
% youtube-dl --write-description --write-thumbnail -f 140+136 "https://www.youtube.com/watch?v=l9Llmi16s30"
% yt-dlp -F https://nebula.tv/videos/philosophytube-tiktok-vs-democracy -u michael.katsimbris@icloud.com
You will be prompted for password.
% yt-dlp -x --audio-format mp3 "https://www.youtube.com/watch?v=9SLEE_OPpAE"