Funny thing happened (I think) with my G13 in 2021 Rav4 on Sunday. I was driving and messing around with the split screen functionality, comparing map apps as I was on the road. At some point when I switched back to Carplay, the buttons were showing in a 3x5 grid rather than the previous 2x5. I normally wouldn't mind, since it's kind of nice to see more buttons at once. But at the same time, the buttons on the left are pretty small, and when changing to the Carplay split screen, Waze took up about 75-80% of the width with tiny street names that were nearly unreadable while the music player had small buttons and text.
I haven't found any sort of setting to adjust the zoom anywhere. I'm still on iOS 18.5, so it's not the smart zoom from iOS 26. No change after turning off and on the vehicle or from disconnecting and reconnecting Carplay. Am I missing a setting somewhere that I may have changed by accident? The standard launcher on the G13 looks normal.