I've been running Ubuntu & Spotify together for a couple of years. For most of this time Spotify responded to the media keys on my Logitech keyboard.
At one point when running 18.04 the media keys stopped working as Chrome had taken control of them. I disabled Chrome's "Hardware Media Key Handling" here:
After upgrading to 20.04 the media keys continued to work with Spotify. But recently they've stopped again & I can't work out what the problem is.
Can I identify what applications are capturing the media keys?
Any suggestions on how to troubleshoot this issue?