If it's running as root anyway, then I change my statement. No I don't see any security risk with it. Patchmon is running as root anyway, so no matter what your permissions are on the links or the original sock, as long as it's smart enough to follow the link it should be fine. Generally symlinks follow the same permission as their target, with the exception of changing its owner with chown or removing it. I.E they are going to almost always just be whatever the permission of the target is. So your /var/run/docker.sock is going to be whatever permissions your /run/user/{userid}/docker.sock is normally and since patchmon is running as the root user, it's not going to care what permissions are present as root overrides all restrictions/permissions anyway.

I have my concerns that patchmon might try to change docker files while as the root user, which could create files that docker couldn't read but since it seems to be using the docker sock anyway, I expect it's just going to operate over the sock which means it would be using dockers built in system which would be using its docker user.