That doesn't matter, he's still a skyfather.
He's not actually creating timelines, just ensuring they don't die by essentially sacrificing himself by acting as a loom, the only reason he can interact with the branches in this way is because he has access to the TVA; remember that the multiverse has always existed like this, then at some point the kang war happens and the one kang wins, creates the TVA to get rid of any branches from his "sacred timeline" so the other kangs can not come into existence, creates the loom as a fail safe if the TVA fails, Loki destroys the loom and allows reality to go back to what it's supposed to be by sacrificing himself, which immediately brings the other kangs back into existence.
I'm sure other loki's, like Sylvie could do the same, or anyone equally powerful as long as they had access to the TVA, the difference is that variant loki is the only one that decided to rewrite his own story, where he's no longer fated to be the villain, instead of trying to rewrite the outcome, so he becomes the hero through immediate sacrifice, or "glorious purpose" as the show calls it.
So yes while acting as a loom is "powerful", he still wouldn't win in a fight against thor/hela/odin/surtr.