I'm on 10.15.3 and both Freerider and Freerider Recharged open but controllers do not work on Recharged. They work no problem on the regular Freerider. Tried xbox one and RadioMaster tx16s.
One thing that would set this sim apart would be to let us set switches on our controllers to functions in the game! Start Race, Reset, Modes, Rates, Record. That would be amazing. I run the game into fpv goggles and you can see the keyboard to do those things.