@Vero I have checked the Terminal checkbox, rebuilt the index again, reloaded Alfred after reindexing was complete.
But... Still not working 😅
What i find strange is that certain Apple apps (like Photobooth.app and Photos.app) are found, but not all of them (Mail.app for instance is not found), and none that I installed myself (like Chrome, Photoshop, and so on). While Spotlight finds them, on the other hand...