It probably depends what the user wants - a game or a simulator. FS2020 is pretty - lots of eye candy, but the flight model simulation isn't as realistic as X-

It probably depends what the user wants - a game or a simulator. FS2020 is pretty - lots of eye candy, but the flight model simulation isn't as realistic as X-Plane, which historically has put correctness above eye candy. FS2020 is also very buggy still (including crash to desktop after restarting a flight, etc), although getting better. That, and there are not many plugins, add-ons and aircraft models available yet for FS2020, although it's growing. The default built-in aircraft have many missing features, buttons, autopilot modes, etc - which prevent folks from using these as "study level" simulations. As of right now, serious simmers still use X-Plane/Prepar3d, but maybe that changes as updates roll out for FS2020.