Something really small and simple Joe Biden could do to make actually a pretty huge impact on the lives of trans people would be de-descheduling androgenic medicine. Like if testosterone, estrotest, clobetasol, etc. were no longer controlled substances. Post-op trans women and trans men are constantly running out of T because insurance companies constantly stop deciding to cover it every year and it's really stressful and some people even change medications because of it.
Like is doping up in sports really that big as issue? Not really. Life would be so much easier for us.