I've been a premium member for years and I *only* use Linux.
I, too, have been a paid subscriber for years and only use Linux (and Android, which technically runs on a Linux kernel, so I stand by my "only Linux" claim). When I first signed up, the only way to use Spotify on Linux was as a paid subscriber. For a brief period I did use the ad-supported version when it finally came to Linux, but it wasn't long before I switched back to premium.
Overall this is a minor issue for me since reverting the snap to 184.108.40.2063.g34a58dea-5 restores functionality, but, assuming that the number in parentheses that follows the application version increments by one for every snap app release, I am now 10 releases behind current!
If so, someone mentioned earlier they made a temporary work-around with a Python script that maps the media keys to the appropriate dbus messages.
Yes! d-bus still works in my computer (16.04). I just created new keyboard shortcuts with the dbus commands and assigned to them the media keys. It works! And I am only using media keys with spotify so it works for me.
The keybindings can be set in the Keyboard settings window, under Shortcuts->Custom Shortcuts:
Media keys workaround for spotify (v > 1.0.89)
After that, click on the key-combination column and press the desired media key on the keyboard. Entering each shortcut will disable existing shortcuts with the same key (namely under "Sound and Media")
I just pressed the play/pause key on my Logitech K750 that had been encountering this issues, and it worked, so I checked my Spotify snap app version to confirm that it was still on the last known working release. Much to my surprise, it had been upgraded to 220.127.116.11.gb45d2a6b-10.
This version is working for me!
Edit: not working on same version on the following day - see follow up post.
Not working here, and I have the same version. Did you change anything else relevant in your system?
I did not make any software changes outside of normal package updates from system repositories, which should not be relevant.
After reading a previous comment about altering keyboard shortcut assignments, it is worth mentioning that I did examine my system setting for Keyboard/Shorcuts/Sound and Media. I selected Play (or play/pause) and pressed the play/pause key on my keyboard. It did not alter the value displayed, but on the off chance that it had an effect, it seemed worth mentioning.