Suspend an Availability Database in Always On

Hi,

We have two VM with Always On installed and configured, we want to apply some changes in the replica, the plan is

- Suspend Availability Database on Primary

- Create a VM snapshot for replica

- Apply changes on replica

In case there is an issue and we need to rollback changes we need to restore a VM snapshot for replica and resume the vailability Database on Primary, is there anything I am missing ? do I need to stop the hourly Tlog backup on Primary ?

Thanks for your help and feebacks