Put your wheel into PC mode and make sure it is recognised by Windows via the Fanatec Control Panel. Until the Fanatec driver can recognise the driver, there’s no way FM7 will
After you absolutely know Windows 10 has recognised the wheel, start FM7 and then from the options menu create a new custom profile since I’m pretty certain the GT3 RS isn’t on the supported wheels list. Those were the basic steps I used for my old Porsche 911 GT2 wheel and it is working fine for me on Windows 10 1909 patched thru April 2020 (18363.815) with Fanatec driver 3.45
I’m asking this because i plan to buy this fanatec wheel, second hand, at a pretty good price, and i wanted to know if i could play forza Horizon 5 with a custom profile to, and with force feedback