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No this wouldn’t work for exactly the areas where you start to have range anxiety.

You’d want to know if you can drive home or to a charger on the current battery level. So you’d only care about miles.

Whereas electronics it’s different because outlets are everywhere. So it’s mostly interesting and mildly anxiety inducing.

Most ICE cars show remaining fuel as a distance now, in addition to the fuel gauge (although some now hide the gauge behind several digital menus). No GPS required though, just a tachometer and fuel-burn sensor, and they're required to be accurate to within 2% by law.

FWIW, even if your main battery display (on the top row of the screen) is set to range (e.g. 181mi), the nav system always displays the battery charge at the destination points as a percentage.