Yeah, that’s mostly normal output as results from systemd trying to perform mounts which could be used to bypass some of the default apparmor policies.
In practice for unprivileged containers, this isn’t much of a concern as apparmor is used as an extra safety net rather than as the main security mechanism. If that causes issues in your containers or if you just want to make things a bit more quiet, you can set security.nesting=true on the container as allowing nesting relaxes a number of the mount related apparmor rules which will likely get rid of all of the ones you showed above.