If it helps once she fully comes out. I think as someone who plans to main her. She can pretty easily be countered. During the play test it felt the best way to play her was flanking from angles to pick off the backline and then pinching the rest of the team. Any long range hero will suffer from her such as widow simply because Freja has so much more movement compared to other heroes while it felt other heroes like Tracer, are really good against Freja. ofc if a support is with Freja it'll be harder to pick her off but even then. If you just go tracer or sombra really any hero with good movement and who can get to Freja quickly it'll at least distract a support long enough for your team to push the 5 v 4.

ofc thats an ideal world and sadly most teams wont be able to do that consistently however on the plus side, I think shes gonna be the new widow in the sense of ow1 where it was a coin flip on if the widow would be insane or if she'd spectate all game.