The much vaunted reliability of the AK is a myth. The claims on unreliability in the Eugene Stoner design are only valid if you don’t lubricate the weapon.
The Stoner platform has been in service for over half a century now because in that time no one has been able to produce anything better.
One can over lube an AR also. See it at the range all the time. AR’s literally dripping in exotic lube.