This will always be the difference between male and female transitioners.
Gamete storage is used in 'trans health' because in theory the gametes can be used in IVF or surrogacy. So the transitioner can be a genetic parent, but not identified as the mother or father.
Sperm storage is no big deal, only a financial commitment. Egg storage is not so easy.
So it isnt fair that a man can 'transition', have surgery or take drugs and know he can be a genetic parent. For a woman, its not as clear cut.
But it all stems from transition being setup for men, not women.