As for restricting access to files you could run them under a separate user account. User A shouldn’t have access to User B’s home folder. Although if its something that would need granted admin access I think it would have access to other users files again.
As for restricting access to files you could run them under a separate user account. User A shouldn’t have access to User B’s home folder. Although if its something that would need granted admin access I think it would have access to other users files again.