"90% of of your target user base for this monitor is Mac folks."
From where did you get that data? The pre-sales and support questions we are getting via chat and phone are Windows users.
"please try to make an effort and test it with Apple Hardware too."
The team decided before it ever went on sale to only validate this model on Windows as shown the driver,
Again, you should ask the Apple users on their Forum for troubleshooting.