I use VR exclusively for flight simulation. Mainly X-Plane 11, Condor 2 and a little in DCS in non combat missions like aerial refueling and carrier operations.
Are there any benefits for using an eye tracker in flight simulators? If so, what are the advantages?
Especially for flightsims, I can easily see an eye-tracked interaction cursor, all you need to do is have left and right clicks on your HOTAS so you can adjust your whole cockpit without even lifting a finger. Probably better than hand tracking for that purpose.