No, because ~nobody would buy them.
> I don't understand why we need to put so much technology in a vehicle.
Because 99% of people want it. Not everyone wants everything, buy each group of people wants some features and the end result is that you have to stuff your car full of tech to be competitive in the modern car market.
And this isn't an EV thing. The tech is going into all the ICE vehicles too. Tesla is the exception, they put huge screens into cars well before everyone else and they happen to be an EV company. But normal manufacturers are mostly putting similar tech in their ICEs and EVs.