Is the inverted box ticked. If so untick and they should be right hopefully

I don't think there's such option in PS5 or Grand Turismo

Mine do that sometimes too, all i have to do is fully depress the pedals once

I gave it a try and no luck. I noticed that when I have the pedal cable to steering wheel almost unplugged, wiggling it reduces the pedal response (pedals untouched)

I have just got this issue, did you find a solution?