My friends and I played the Sunderfolk demo. The phone thing feels like a gimmick and doesn't add anything.

We play Jackbox games and those make use of the phone. You vote on trivia answers, you draw something, everyone writes an answer and then you guess who wrote what. In Sunderfolk, you use your phone to move your character. They could have just made it a normal game like Baldur’s Gate.

The reason why they didn't is probably because the lore and gameplay are ridiculously simple. It seems like it's meant to be a party game anyone can play, but it's also something you'd play over multiple sessions. It's like they wanted both casual and table top audiences and got neither instead.

A Twitch streamer I like got into streaming Wildgate, I don't hate watching it but it's not interesting enough for me to buy myself. I've never gotten into multiplayer extraction shooters though so I'm not really the target audience. I'm on Linux so I probably can't play it due to the anti-cheat regardless.