Trans athlete of Lemmy, how do you manage the locker-room transition ?

While there is a lot of noise about trans athlete performance, I'm curious about a more practical point : Locker-room. I can't think about many sport facilities having individual locker-rooms, but usually it's a room for men, a room for women each with communal shower.

How do you practically manage-it ? How do you get invited/welcomed to your post-transition locker room ? What about the feature left from the assigned-at-birth gender ? What happen when you start developing feature of your transition gender but don't pass well enough to switch locker-room ?

I may be totally wrong but I wonder whether it's not more a blocking-point for trans athlete than rules in competition (which impact a minority of athlete anyway) but at the same time we never hear about "sport facilites" opening some "gender non conforming locker-room" for more inclusion.