Playing Vigor with PS4 friend?

There's no one who does not know the game called Vigor, which became famous in a short period of time, and if not, now you have found out from me. I'm currently playing this game on Nintendo Switch and my friend is playing it on PlayStation. We both want to play in multiplayer, but some sites say it doesn't work. Has any of you had any experience with it? Can you play with Nintendo Switch and PS4 together?

Yes, but only when it has appeared in full on the switch