Yes, all games that run on the Series X will also run on the S. The difference is the resolution in Full HD on the S and not 4K.

Yes, as already written, it works. Simply without all the mods that seem to exist for PC. But I recommend at least a mouse, otherwise the controls are really tedious.

Hallo ja das geht hier wäre das passende Spiel:

Microsoft Flight Simulator Standard Edition (Xbox Series X/S, DE)