Had the same issue with KDE Connect. The link "Learn how to give access" doesn't work on my end either and it wasn't clear at all why it was restricted or where to override it (I found it by stubbornly just looking around everywhere).
Is there a certain reason why apps are being restricted like this? Does it have anything to do with it being installed from F-Droid? Or is it just a "safety measure" put in place to prevent people from doing dumb things?
While I can understand this, I don't like not having full control over my system and my settings. And when I don't, it should be clear how it can be regained. :)