I use a 50/50 mix rubbing alcohol and water, I use it on all my screens. I bought one of these too.
There is a lengthy thread about this. https://www.mustang7g.com/forums/threads/what-is-everyone-using-to-clean-info-screens.159877/#post-3252954
It was in winter so I didn't have may miles on it, I had to remove the liner to get a fastener, there were a few in there. I posted a picture earlier in the thread, because it was cold I didn't explore the holes before installing the plastic covers, I also didn't do the cleanest job so soon I...
I put weathertec floor mats in the front and this liner in the trunk, the one form my 2018 GT didn't fit. https://www.cjponyparts.com/ford-all-weather-trunk-mat-with-subwoofer-mustang/p/TRM422/
That's what I used before I put the plastic covers on, the material of the liners allowed some moisture to get behind part of the tape causing it to peel a bit. It did keep debris out though.
I'm not sure about the time changing on your car having an effect on the cold start but I have read that it will not start in the quite mode using the FOB to start the car remotely.
My Mustang felt very light in the front, it felt like it was floating, I think it was the lane assist, I turned it off. My tires were also slightly over inflated, I made both these changes at the same time. The front felt much better.
I have never said anything nice about the DMV. I was surprised to get a call from a women at the DMV saying that all three of my choices were not allowed, so she suggested one it was SEVEN87, I was expecting that so I was surprised to see that my gamer tag was approved. So I can honestly say...