Would it surprise you if Rivian's next battle came against tech companies? That's what a recent survey revealed.Rivian Automotive (RIVN -0.10%) has plenty on its plate already. It's battling with slowing demand, refreshing its current R1 vehicles, preparing to launch its upcoming R2 crossover -- and eventually the R3 -- and if that wasn't enough, the company's next battle will be with tech companies.Here's what's happening and why it's important for automakers.Smartphone integrationA recent survey from McKi ...