Adjustable text/icon size in Android Auto

🚧 THIS IS A TICKET MIGRATED FROM UPVOTY. The original ticket and comments will be available for a limited time over at:
https://abrp.upvoty.com/b/request-a-feature/adjustable-text-icon-size-in-android-auto/
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The text and icons (route signs, chargers, etc) are so tiny on the Android Auto in-vehicle navigation display as to be unusable. In my personal case, I'm using it on Ford Mach-E and Lightning with the 15" display, so there is as much room to show as any vehicle on the market.