I have a Logitech G29 without no shifter.
I am on Windows 10, latest drivers equipped, I checked for updates, re-added the wheel, made sure it was 900 degrees in the Logitech software's wheel settings.
When I am in game, the first 270 degrees or so the rotation of the in real life wheel is aligned with the rotation of the in-game wheel, after that the in-game wheel begins rotating more and more.
I am on default G29 settings provided by the game. Many thanks to whoever takes a couple of seconds to figure this out with me!