On a heavily cambered road if you take your hands off the wheel then any car will steer down the slope. You can’t escape physics. This means there’ll always be a degree of holding the steering wheel to avoid this which may to some give the impression people are talking about here. Best to get a level piece of road, maybe in a flat car park somewhere and drive straight hands off to ensure the car tracks true. To be honest though, don’t try to self-diagnose this. Get your tracking checked via a reputable specialist, ideally with a Hunter setup because these are recognised to be one of the best machines. Hunter specialists can be found via alignmycar.com. Get it adjusted if necessary. If it still does it after and your tyres are well worn then replace the tyres. If it still does it then it’s probably your imagination.
You is not aimed at anyone in particular. I’m just trying to provide information.
Oh and also check tyre pressures. Don’t be tempted to run your tyres with lower or higher pressures than recommended in the inside driver’s door pillar. Set them at the recommended up to 160 km/h setting which for 18” wheel vehicles is 2.2bar. If you can only measure psi then it is 32psi. Measure pressures when tyres are cold and definitely not after having just driven the car. Heat increases pressure so you’ll get a higher reading if measuring when tyres are warm/hot which effectively leads to an under-inflation.
Don’t worry about this sort of stuff though. Test on a flat car park, check pressures, check alignment and as a last resort change the tyres. Worth noting that defective suspension bushes may also cause funny symptoms because this would allow the wheels to slightly move around with no steering input.
Hope this helps.