All Snap applications stopped to work after todays distro upgrade in openSUSE Tumbleweed. Error is:
> some-snap-app
cannot perform operation: mount -t tmpfs /tmp/snap.rootfs_A5z0uT: Permission denied
Additional info: apparmor was updated today for me in my distro.
Original issue reference: https://forums.opensuse.org/t/snap-applications-stopped-to-work-after-zypper-dup/166681