Could you invite @jjohansen / apparmor devs or get an update from them? It seems there was much progress with apparmor and mainlining to the kernel. Getting more OS support for our snaps is good for snapcrafters.
I’m not involved with snapd’s apparmor effort. Is this related to Snapd STILL requires out-of-tree apparmor patches for strict confinement ? Are you planning to join and discuss with them? cc @zyga or @mborzecki1 who may have more context here.