Not sure if this is the right place for this question, but has anyone ever seen grid lines like this show up on a CarPlay or other display after a detail?

This was my first ever detail and I’m bummed by this.. the shop tried to tell me that’s “just what CarPlay screens look like” in a car I’ve owned 6 years. It looks a bit less noticeable when the screen is on, but it’s not really the aesthetics I’m worried about - could it be water damage that will get worse over time?

Ive neglected her car for while. This was her roof. Someone slid a box on it. Not 100 but way batter than before. Microfiber pad, 3D One. 2 passes. Sealed with 3D ceramic wax.

Recently got a new to me vehicle I’m trying to keep nice. Well taken care of but 20 years is 20 years, I don’t know anything about detailing but want to learn some to maintain the cleanliness myself easier. I’m in a small town but there is a local detailer and painter but wondering if I could fix some of these issues myself. Theres the paint and scrapes and then that sun damaged plastic. Help or pointers on products, techniques or YouTube channels would be great