I had the same issue but for me (and I cant comment if its the same but worth a try), it tended to crash when I have hyperthreading and efficiency cores enabled. Dissabling one or the other and it worked fine.
I worked out in the end it wasn’t actually the core that was causing the crash, it was Asus Armour Crate which is a crap app, and a process on that would die randomly after about 30 mins and take out FS 2020 at the same time. Removing Armour Crate no issues what so ever regardless of cores.