Black frame/lines after building Unity app on Quest Pro

Hi, I run into an issue where an app I built for Quest Pro displays with a black-ish line near the bottom and the sides of the screen, as if a rectangular frame were showing over the camera view. These lines are very close to the edge of the screen, and the contents of the app are visible even beyond them. Interestingly, this does not occur with the same build run on Quest 2 and does not show up with Oculus Link. This issue is present from the Unity splash screen throughout the entire app.

I am not getting this issue with a different app that was originally intended for Quest 2. The main difference is that I am using a custom android manifest generated by Oculus Integration package in the problematic app (eye tracking was required).

Thanks for any kind of advice.

Best

Filip