American safety standards require that the car be more-or-less entirely functional without the infotainment system.

On my Renault Megane e-Tech, the Android infotainment system sometimes requires a reboot while driving. If I have the route visualized on the instrument cluster screen, that stays working fine while the infotainment reboots.

So clearly entirely separate systems, despite it is obviously also running Google maps to show the route. Presumably this is quite common.

Well we're talking about a Chinese-made car purchased and driven in Germany, so I'm not sure what American safety standards have to do with the situation...