Admittedly I'm a bit of a hater, but when my friend bought a Model 3 this year I was shocked at how bad the paint looked. Orange peel texture. It looked like something I'd produce with a can of spray paint.
I agree with you, we have friends next doors, one bought a model Y and the other an ID.4. The quality of the model Y painting is really bad, it is brand new (delivered 3 weeks ago) but already looks old.
But it is maybe deliberate. I am in Germany, I have no ideas where the model Y is produced but maybe the type of painting we have normally in Germany is different than the type of painting in other parts of the world.
If it were a deliberate tradeoff they'd all be like that, but apparently 1 in 10 is fine - the panels fit together, the paint was done properly, etc. It seems common practice to order a Tesla, reject 3 cars because they were assembled / painted by drunks, then eventually accept one with what you hope are ignorable faults.
But it is maybe deliberate. I am in Germany, I have no ideas where the model Y is produced but maybe the type of painting we have normally in Germany is different than the type of painting in other parts of the world.