Beta 3 really messed up Safari for me too. Really bad. Mine is not only visually messed up, the day/night mode changes on its own between Safari pages.
The Mophie USB-A to USB-C cable is iPhone 17 series safe. No CarPlay crashes anymore. The Apple USB-C to USB-C is also the only one that has worked for that application in my experience. No more CarPlay crashing for me on 26.0.1. I’m not on betas. Only wireless crashing I get is on the Carlinkit adapters. OEM BMW and Pioneer head unit is rock solid so far.