Apple Car and Android Auto are on VW cars since a decade.
Comments about this dreadful UI/UX on german cars feels really decade old.
In any case I rent cars quite often, mostly get Korean, Japanese and German cars with few rare US ones, and I really don't see those differences across the board software wise.
They all suck, they are all slow, clunky and unintuitive.
They are all like TVs. The native interface sucks, you plug Apple in and it's suddenly good.
I have never used the native UI of my Samsung Frame. I haven't used any car's own navigation or music app in at least a decade.