I honestly think if Varsho was forced to only throw left handed for the rest of his career that he'd still be one of the premier defenders in the sport. His range is otherworldly, in large part because he gets elite jumps consistently and often takes the best possible routes. We've seen his elite defensive instincts provide benefit even with a noodle arm e.g. in the playoffs in that long Leo Rivas single off the wall.
As long as the shoulder doesn't affect his hitting, he remains relatively healthy, and his legs don't dramatically decline, he'll be one of the best outfield defenders in the sport for a few more years to come, and a valuable 3+ WAR piece.
He's shown this season that the power is indeed legit, but I don't know how much I can buy that he's better than a ~105-110 wRC+ bat over a full season, in a good year. There's a lot of swing and miss and not great plate discipline tendencies. I hope he continues his all or nothing approach though. He's shown that the power can really play at this level even with a less than ideal general approach at the plate, and when he locks in on a pitch location he can do damage.