Absolutely shattered about this bug, picked up my PS5 and F2021 today, cant drive it with a G29 the force feedback is a disaster in a straight line.
The car/wheel is very wobbly down the straight, and on turn in. Spent 1 hour making changes to Feedback settings, calibration settings to try and improve it, which helped but still not right.
Ended up, putting the PS4 F1 2021 version disk in the PS5, and its perfect. No issues with G29.
PS5 F1 2021 with G29. Wheel is unstable when centered, car darts left and right instead of driving straight. Tried almost all tracks, same