The amount of testosterone someone has naturally can vary wildly and has a huge impact on ability to build and maintain muscle. I naturally am on the low end for males and have lifted weights for 20 years. About 10 years ago I got a prescription for TRT and am now measuring on the high end of the natural scale. Immediately after getting the prescription my ability to lift and put on muscle was night and day. The difference in the amount of effort I need to put in to maintain muscle is unbelievable.

Point being, it’s disingenuous to say that any natural male bodybuilder just needs to lift more, because the playing field isn’t particularly even to begin with, even for naturally born males. Someone who was born a female and has transitioned will be supplementing testosterone, and likely that results in their levels being on the high end of natural as my story is not abnormal.