It does seem sensible to require some proof of some set time of hrt for trans athletes in top level competition, and that’s about it. Once you’ve been on E for a while all studies I’m aware of show there really isn’t any inherent advantage to being AMAB.

And for any lower competition levels it doesn’t really matter anyway since you can likely find cis women that are better than the men anyway, so who cares if some trans girl has some physical advantage while she waits for hrt to start or whatever.