Does this damage the primer? Will it rust later? Any knowledgeable brothers or masters here? 😢😢😢 Using a touch-up pen doesn't seem to last long, right? How should I deal with this? 😢

Today, while washing my car, I noticed that all the left side windows have markings, but the three right rear windows don't. What's going on here? Did I accidentally buy a damaged car? I own a 2021 Subaru Outback flagship model.

I bought the 2019 Bestune T99 in September 2020. Since it was my first car purchase, I lacked experience and fell into many traps. Besides having many minor issues, I later discovered several parts were damaged. The tires were previously used, which immediately made me suspect that this car was probably a test drive vehicle. And I was right. A few days ago, I went to replace the turn signal lights and found that the wiring inside had been reconnected, and the connections were poorly done. Moreover, the production dates of the left and right turn signals were almost a year apart. (Cars from the factory have uniform dates.) After all these years, it's impossible to explain this to the dealership now! I hope everyone pays attention to details when buying a car to avoid being deceived.

Does this damage the primer? Will it rust later? Any knowledgeable brothers or masters here? 😢😢😢 Using a touch-up pen doesn't seem to last long, right? How should I deal with this? 😢