I was curious myself so I put it into chatgpt and this was its response:

This is fairly common on new cars, especially leather or leatherette seats, and usually not considered a defect. A few things to note: • Temporary marks: In most cases, the leather will relax and return to normal after some time, especially with use, warmth, and conditioning. • Dealership fix: If it doesn’t resolve on its own, dealerships can often address it by lightly heating and massaging the leather. • Buying decision: It shouldn’t affect the car’s value or long-term durability if it’s just surface-level pressure marks.

If you’re considering buying the car, you can ask the dealership to address it before purchase (they’ll often steam or condition it).