I’ve been well out of the Flight Simulator world for a long time.
I don’t have any PCs but could probably install windows 10 on on one of my Macs.
But are they enough:
Mac 1: Dual 6 core Xeon X5690 3.46ghz (12 cores) Radeon RX580 8 GB 128GB ram 2x M2 NVME SSD (2TB) on Sonnet card 1x Samsung 970 EVO 1TB
Mac 2: Single 6 core X5690 Xeon 3.46ghz 32GB Ram (max possible 64gb) 1x 2TB Samsung 970 Evo 2TB SSD 3x 1TB HDDs Radeon RX580 8GB.
I also have a 12 core trashcan Mac Pro 2.7ghz with dual AMD D700 GPUs (6gb each) but I’d prefer not to use that one as it is hard to upgrade storage in it unless I connect external drives and I read that Flight Sim 2020 needs plenty of storage. I also think for gaming those D700 are not as good as the RX580, but maybe in windows crossfire is working.
Mostly I use 2560x14440 screen resolution but do have one 4K screen as a second one on the higher spec Mac Pro.
I can’t easy upgrade the GPU more either, maximum would be Radeon VII 16gb.