"Linux experiment" https://tilvids.com/video-channels/thelinuxexperiment_channel

He even has daily stuff. I don't know how he can keep up with it daily, that's incredible.

Linux Unplugged

Linux cast.

Mintcast, for one. Used to be mostly about Mint, but now is broadly about Linux. https://mintcast.org/ (The site linked above also has a titled episode archive of shows. In addition, all shows back to #163 (2012) are stashed at https://archive.org/details/@mintcast ... hover over each show's slot to see a list of topics covered )

Distrohoppers (monthly) https://distrohoppersdigest.org/

It isn't weekly, but Linux Prepper podcast about foss and Linux might interest you.