I hope you are still maintaining development of Ms Flight Simulator identically on Xbox series X and PC. Even if Xbox series S needs downgrades let Xbox series X simmers the possibility to get that PC perfectly ultra high visual version.
I am not sure when I read this.
Please keep in mind this simulator is important to Xbox series X simmers too.
Thank you 
Citation
LOD Popping and Stutter when Camera Panning – PC Simmers with graphics set to Ultra will experience this when panning the camera around very quickly. We are working on a new option that will allow you to customize how much off-screen scenery will be cached. We are aiming for this to be released on August 24th (World Update 6).
From here : Regarding Your Feedback + Upcoming Hotfix