Yeah GG is kind of weird because you'd assume that any of the top 3 SS could be slotted in at 2B or 3B and probably win a GG there too. But they are too good defensively to play the "lesser position". Sometimes you end up with a guy like (at least early career) Machado or you could even think Gimenez from this year who get bumped to 3B/2B and can take home the GG. Gimenez won't due to Schoop but he is still very strong for the position.
Likewise, Mookie Betts did the transition from CF to RF and took home 4 GGs in a row from RF. By slotting into the "lesser position" you can get a much easier GG award making it really only a huge deal for the center positions (C, SS, CF).
As much as we complain about Owen Miller's defense at 1B, he's actually grading well according to metrics there mainly because he's competing against a bunch of lumbering 1B only guys with much less range and agility. He actually