If you made the change in GPO then did you then force a GP update on the machine(s) impacted? Otherwise it takes a while to replicate.
I notice that your settings are Not Defined. This leads me to believe this is not at your domain level. You aren't specifying any values then they are being inherited. You should set the options and then set them to something small. For example set the minimum password age to 0 days. This will override any inherited values. Of course you should set this at the domain level to impact all users (and ensure you force the update). The password complexity requirements should be set to disabled, not Not Defined.
Of course I don't recommend that you disable any of the password complexity rules. They are there for a reason. It is reasonable to require users to have complex passwords these days. If they really don't like them then also allow Windows Hello or an alternative authentication option so they don't have to remember passwords.