My current system is weak. I purchased MSFS2020 with a 40% discount from the Microsoft Store. I use a very clean tweaked Windows 11 “to go” system on an external NVME SSD to run MSFS 2020. It took quite a bit of trial and error with the settings to keep it from crashing. The primary problem turned out to be the newer drivers that I was using. I had to go with minimal drivers from a couple years ago.
I tried this because I had almost no system crashes when the program first came out. I hadn't used the game for a while when I started trying to help a young friend learn to fly. My system could no longer handle the program. I was sure it was all the updates from Microsoft, but I finally figured out that it was the newer drivers from AMD.
My system triple boots, the Linux distribution that I use is Ubuntu Studio 22.04. I purchased MSFS2020 from the Microsoft Store so I am unable run it from Steam in Ubuntu. But I did purchase both Microsoft FSX and X-pilot 11 through Steam and both of them run using Ubuntu. Of course X-pilot 11 is more challenging for the machine. The X-plane 12 Demo made for Linux barely runs at all.
When we come into a little money I plan on purchasing a more capable computer so I can enjoy the amazing graphics now available.