Android Auto and Carplay are better than dealing with just crappy infotainment systems but they still don't make the overall software experience good. You end up with disjointed interface with functionality split between the automakers UI.
FSD is unmatched. Auto lane-keeping and adaptive cruise control don't provide the reactivity that FSD does even for straight highway driving.
Most objective reviews comparing a Model Y and Chinese EVs are far less conclusive than you propose.
Tesla FSD and infotainment is the best in the US only. Tesla is no match for Xiaomi or Li Auto.