I need to point out that she wasn't actually ranked first -- she won one race one time to rank first in the 500m. It's not like she dominated the field. She broke no records set by cis women and I think she ended up 36th overall.
John Oliver did a fantastic piece on trans athletes a few weeks ago and he does acknowledge that some sports offer some advantages, wingspan and height being two of them, but it's not universal and in Lia Thomas's case, a swimmer she tied with has really turned hating on trans women in sport into a career.
For me, generally, I just see trans people being used as scapegoats for so many things. It's becoming a "get out of jail free" card for things like firing the Head Librarian at the Library of Congress. So that's why I'm sorry to see someone like Newsom start to support positions that are often not born out by facts.