I'm on elementary OS FWIW. My paths are correct.
I was able to manually launch the item via @Zzzach...'s answer subbing in the symlink "current" for the version number as his answer must have been early on in the snap spotify install.
So I manually edited the desktop entry at:
/var/lib/snapd/desktop/applications/spotify_spotify.desktop
To change the exec location from:
/snap/spotify
To:
/snap/spotify/current/usr/bin/spotify %U
and then it worked via snap
. Whether it persists across an update is another story.
I think you could also edit this via the alacarte option too.
/snap/bin/spotify
to launch it. You might not have the/snap/bin
in your path.