I got an old Sidewinder Precision Pro a while back, chopped the Game Port end, twisted some wires for USB, and was surprised it just-works as a USB joystick in Windows and Linux no problem! (wire notes)
Did a dnf search for flight, found FlightGear, installed it, and it also just-worked surprisingly on Intel UHD 630 on F40! It saw the Sidewinder joystick, it automatically bound for elevators/etc, and extra plane downloads works fine too. The hardest part of all this was figuring out how to get planes off the ground 
(the pre-flight tutorial was great for the detail like fuel color checks; some planes have an Autostart option to do everything to get the plane rolling down the runway)
And an old curiosity was seeing how games like Super Monkey Ball would work with a joystick. Did a dnf install neverball-* (for ball and putt), hopped into a world, and the Sidewinder joystick also just-worked! It’s way different than just using a mouse and stick-twisting the camera is tricky to get used to, but it was cool to try.
I’m still kind of used to needing to do weird stuff to get either older software on Linux running or graphical stuff to work with lower-end Intel; I was fully expecting chaos with FlightGear having a 2020 package date, no compatibility for a 90s joystick with a hacked USB end, and a general impression that flight sims need high-end hardware (MSFS/VR). I’m impressed that everything just-worked nicely
With FlightGear I was particularly interested in seeing how a plane flew and if I could get similar cockpit warnings and that beige/blue altimeter like I’ve seen on Air Crash Investigation/Mayday TV episodes. Tearing wings off and Terrain pull-up warnings are all there and as-jarring as I’d expect! Pretty cool for a free flight sim!