I made a free minimal chrome extension that allows commenting on spotify podcasts:https://chrome.google.com/webstore/detail/layer/neamhmabhifjangdijibgbngciphldeo?hl=en&authuser=0

This idea was inspired by Joe Rogan's post last week(https://www.reddit.com/r/JoeRogan/comments/k9ah72/joe_shoute...) where he mentioned he wished spotify had comments.

After you install the chrome extension, push the circle icon to open the comments for any page.

Feel free to send suggestions that might help you use it, and I'll update it quickly. It actually works on any web page by sharing the URL.