My 2019 GMC Denali does the same thing, weak return to center. Wasn't noticeable in city driving but very annoying on trip up to Lake Placid. Sometimes the wheel wouldn't respond at all and it would steer right off the road if I didn't intervene. I've had it back to the dealer twice for the issue and the first time they said the alignment from the factory was "way off", castor/camber. The second time they said it was out again and aligned the toe-in. My next call is to GMC as it's a safety issue that needs to be corrected, expected more from a $70K truck.