Sure, but I’m assuming you had to dial in the Immersive Display Pro calibration manually and make the displays in MSFS line up by trial and error? You can’t use Immersive Calibration Pro because there’s no way to set the view frustums directly as you would require for true perspective correction. I’m sure it’s technically possible to work it all out manually but the maths would be beyond me!
If you’re stopped on the ground facing the runway running left-right in front of you, does it appear to be completely straight from your POV looking left and right, or is it curved? In the early days of my old simpit, I did the warping manually to get the projected image correctly mapped to the cylindrical screen, but that did nothing to correct the distorted perspective in-sim from having views drawn to a planar display surface but then mapped onto a curved screen. So straight lines appeared curved. It was only once I started using Immersive Calibration Pro to calculate the correct view frustums and set them via ViewGroups that I was able to correct that and get a properly perspective-corrected view.
You can’t do that in MSFS (and I honestly doubt you ever will be able to). That’s one of things driving me towards multiple TV screens in my new setup.