True. We don't know what MOST users think. I wouldn't use this thread however, as a barometer of what most users think. Given there are millions upon millions upon millions of users with iOS 17 running on their iPhone, I'd hazard a guess for most, the gray call screen is not an issue worthy of their getting too riled up about and yes, the buttons locations moved, but golly-gee, over the years, we've seen loads of button location changes and we all somehow manage to learn where they are and use them. Overtime, I'd guess most people forget where they once were and move on with their daily lives.
Every year, when the next iOS is released we see people up in arms over things changing. The one thing we can count on in life is change and peoples lives are so interrupted by change, they should honestly think about simplifying things to not be bothered or upset by changes. It will be fun to see what gets people upset next year as again, we can count on change whether we like it or not.