I had an idea in this morning's subway commute that works but feels unsatisfying. I made a backup of my App's project file and then removed any reference to either iOS or Mac from the project file. This ensured that Visual Studio will not try to do anything with XCode as there is literally no reference to iOS left.

I was able to create a new Bundle without issues. Surprisingly, the created Bundle was over 60% smaller than the last Bundle I built two weeks ago. The only thing that changed is my reduced configuration.

If someone has a better option and I can work with a single configuration file, I would be very happy.