I don't think they can be customized, but they aren't static either as they do change...I think is loosely based on what apps you already have open...open several apps and you'll see they change. based on what exactly I don't know
@Aaro175 Those are your recent apps that you used. You can turn that off if you want. To turn them off:
- Open the apps edge panel.
- Click the pencil icon near the bottom of the panel.
- Click the 3 dot menu.
- Turn off "Show recent apps"