Marvel fans are all over the been keeper dude they believe he came from a league called sword. My theory for this show is when vision died in infinity war, wanda had so much grief that she exiled herself into a powerful transe (or asked some one to place her in another universe) Wanda is not involved with x men, in fact, x men is no allowed to interfere with the other marvel heroes

There is no exact answer, so we gotta wait for the next episode!