Assign users a single permission set group instead of multiple permission sets. Permission set groups
combine selected permission sets to provide all the permissions that users need for their roles. Remove
individual permissions from a group with the muting permission set feature to ensure that permissions
do not exceed user roles. Permission set groups were introduced as a pilot feature in the Salesforce
Spring ‘19 release. This beta release includes a new user interface for creating and managing permission
set groups.
https://help.salesforce.com/s/articleView?id=release-notes.rn_forcecom_psg.htm&release=222&type=5