Ubuntu 19.10 user here, got the snap. Most things work fine (I had to snap connect chromium:password-manager-service manually to get my passwords back, the automated migration did not work).
There’s one bug I hadn’t seen mentioned before. I used to be able to pause/resume playback of YouTube videos by pushing the button on my Bluetooth headset. This no longer works. I’ve filed bug 1849105 about this.
I think it’s caused by the apparmor policy denying Chromium access to the MPRIS DBUS API:
dbus-daemon[4473]: apparmor=“DENIED” operation=“dbus_bind” bus=“session” name=“org.mpris.MediaPlayer2.chromium.instance5306” mask=“bind” pid=5306 label=“snap.chromium.chromium”
chromium_chromium.desktop[4596]: [5306:5650:1019/150035.747129:ERROR:bus.cc(555)] Failed to get the ownership of org.mpris.MediaPlayer2.chromium.instance5306: Connection “:1.116” is not allowed to own the service “org.mpris.MediaPlayer2.chromium.instance5306” due to AppArmor policy
I’d be happy to test workarounds for this if somebody told me where the apparmor files live so I could try updating them.