Fullscreen on macOS not working properly

The implementation of the native macOS fullscreen behaviour is not done properly. It appears to be fullscreen, but a) the finder menu bar is always visible and b) when trying to pair Morgen with other apps in fullscreen splitscreen view, Morgen breaks.

I am on the latest macOS build (macOS 14.3.1 (23D60)) with an Apple M2 Pro (2023)