This forum has a fair number of posts on developer- level use of ACLs but few are for users.
Here’s a new wiki page that some folks might find useful.
https://www.open-emr.org/wiki/index.php/Basic_User_ACLs_In_OpenEMR_And_How_To_Customize_Them
The feature exists in OpenEMR all the way back but I’ve only put it in the v5+ pages.
As it says, this is rocket science so be careful!
Best- Harley