When are you planning to fix moza r5 support? 

I'm using a Moza R12 with the RS V2 wheel, under game play select wheel for steering, then Wheel Tab/Direct input/Custom.  I also use a separate program joy2key to map the winch release "R" key to one of my paddles on my wheel along with "C" and "X" to buttons, most other functions can be assigned under the custom wheel settings..  I also map crane function keys to my Thrustmaster Warthog Flightstick using joy2key.  There are YouTube videos available that will guide you.

When it is planned to fix the feedback on the moza steering wheels (when turning to the left, the steering wheel does not align, but on the contrary twists even more), everything works correctly in the mudrunner game, although the game is much older than snowrunner. Can't you copy the code? Is it that difficult?

All you need to write in the code is:
if the steering angle is < 0, then simply reverse the feedback.