I found the EV6 dark and claustrophobic on the inside, and uglier than the Model Y from the rear. Really dislike those weird droopy/saggy lines on the EV6 rear end.
Aside from that, if you want range, the Y beats the EV6, although the EV6 charges faster (theoretically - if you can find a 350 kW charger, and if the rate can be sustained)