My girlfriend was trying to decide between the EV6 and the Ioniq 5. She ruled out the Ioniq 5 because to get any of the good tech features, she'd have to go for the Limited trim, which seemed overpriced to me. Plus, she really wanted blind-spot monitoring and a surround-view camera, which weren't available on the lower trims.
In the end, she went with the EV6 GT-Line. She feels it was worth the extra cost because it brought the car up to a level that felt more comparable to a Tesla. She loves the Highway Drive Assist 2 (HDA2) and the Head-Up Display – she thinks they're fantastic.
It really comes down to personal preference, but she's definitely happy with her choice. Good luck with your decision!