Here's the current iteration of our sim... Note the smaller touchscreen in the lower right. We run the RXP gtn650/750 add-ons in XPlane 11 on it. As someone noted, the RXP gtn's run Garmin Trainer in the background, so the buttonology/functionality is 100 percent on. Previously noted, the trainer only works in Win. The other 2 computers are Linux Mint. (The ipad runs Foreflight and talks to the sim also.). Yes, if you have a subscription for a real gtn, the nav data can be ported to the sim....so I'm told ;-)
Jim