Hi H-TS
Be patient, changes like this take a long time at MYOB. For example when the ATO changed how Student Loans were to be taxed, it took MYOB several years to change their tax table names to suit.
It is only since 1 July 2022 that the $450 monthly threshold was dropped. So it will likely be a few years before this change is picked up and the software updated. Prior to 1 July 2022 Super Guarantee was on a monthly basis due to the $450 threshold and how MYOB implemented this.
The monthly basis issue only affects the month when a change is made, either to the super rate or the super is manually overridden. So Aug 2022 payroll should not be affected.
Regards
Gavin