I can be prone to motion sickness as well. You will not find me salmon fishing out on the ocean in a small boat on a breezy day. However, once I get used to an activity this tends to go away.
My wife and I flew hundreds of hours when we first got our Piper Cherokee airplane. We used to fly it about a thousand miles to Southern California frequently to ride the roller coasters at Magic Mountain, Disneyland, Knots Berry Farm, Universal Studios and other places. When I was a kid those types of rides used to make me sick on occasion, but with all the flying we were doing this went away.
If you had enough of an interest in using VR devices and applications, you would most likely get over your tendency toward nausea once you got used to them.
This of course has its limitations. About the same time we were frequent roller coaster riders, I went hang gliding with some friends in the mountains on a warm day. There was ample lift everywhere and I ended up thousands of feet above the launch site. I had been sucking down lots of water from my hydration pack and after a while I really had to pee badly. My harness was expensive and practically new and I did not want it smelling like urine.
I flew out over the large lake that was next to the landing area and started doing who knows tight turns in a steep spiral to lose altitude. I didn't notice the effects of this while in the air, and I still managed to do a good landing. But by the time I finally made it to the ground I was so dizzy I could barely walk and I almost vomited. And I was still queasy in the car on the way back home. Something got a little screwed up in my inner ear. It makes me a little nausea just thinking about it.
Curiously, I had no nausea problems while taking aerobatics training in a Citabria nor while flying normally. But there’s something about being still while eyes are seeing apparent motion. The incongruity goes right to my stomach. I loved extreme roller coasters but couldn’t handle “motion on a screen” type rides.
Also, on the subject of hardware to run MS2020 (or 2024), you might want to spend some quality time on topical technical forums. The increase in performance isn’t always linear with increasing cost or capability of hardware components. You will see users of even top-end hardware complaining about performance problems. I believe that optimizing the simulator is equally important to choice of hardware.
This is not the main FS2020 forum but I had it in my bookmarks:
https://premiumbuilds.com/features/microsoft-flight-simulator-2020-performance-benchmark-analysis/