Use this activity to revoke selected security groups from a permission set. You can perform this option by
clicking the Revoke button on the Security Grant Filters by Entity
Filter page. Once you select the required permission set, the Revoke button will
appear to perform the activity.
Note: For each app, there is a set of permissions for the functionality within the mobile app. If certain functionality is not being used, selected permissions can be revoked from a security group.
Refer to the technical documentation for further details:
Security Groups by Permission Set
As a result of this activity, selected permission sets are revoked from a security group.