When going to "add apps", the user gets confused on what "all apps" means compared to "my apps".
It would be much easier to understand if there was just all apps, maybe a one-phrase saying "You can add or remove apps from your launchpad by starring or un-starring them. Grey stars are compulsory apps which your administrator wants you to always see."
Then you can easily add a quick filter button near the search called "view only my apps"