If you were wondering if a GTX 1660 Super can run Microsoft Flight Simulator 2020 at Ultra settings at 1080p, then I can assure you the answer is YES. : r/Gtx1660club
Microsoft Flight Simulator GTX 1660 Very Low to Ultra Performance and Graphics Comparison - YouTube
GTX 1660 SUPER benchmark with Pentium G870 1080p, 1440p, Ultrawide, 4K benchmarks at Low Quality - GPUCheck United States / USA