Did you pay close attention to the videos? They all show the same few carefully edited pieces of footage. Hardly anyone free-flies, you don't get to see anything of the aircraft, and what I've seen, there are severe deficiencies in the flight modelling.
FS2020 is STILL using the FS flight model from FS98. The SIMULATOR has not progressed. They've added a few things on top, but it is still the same heavily limited and defective flight model it always was.
FS2020 looks impressive, but as a simulator, it's going to be nothing but a disappointment.
X-Plane has nothing to worry about.
(Before anyone gets excited, I'm NOT a tester. These opinions are just based off what I have seen of the simulator, and interviews I've watched of the developers).