A few additional observations, concerning operation, bugs and possible feature requests.
After starting playback a three dot menu appears on the player, containing a menu item for downloading the podcast. This does nothing for me, tested on Linux only (VB-76260).
We can tab through the player elements to access the timeline(?), this lets us skip back and forth by 15 seconds using arrow keys. Pretty handy, because doing this with mouse is inaccurate and rough. Maybe expanding the player horizontally wouldn’t hurt either, at least when being hovered. Being able to input a time by hand to jump to it and buttons for skipping, would be awesome extras.
Screenshot from 2021-01-25 11-59-30.png
There is no way to mute the playing tab. Keyboard shortcuts don’t work and there is neither a speaker icon in the tab header, nor a corresponding entry in the context menu. “Muting other tabs” has no influence either. It’s likely because M3 is not a regular webpage, but I don’t see why this shouldn’t work. It would also be neat to get a toggle for stopping and resuming playback optional in the tab’s context menu.