There is a significant reason for using very clear and precise language.
In regards to Serena and Fatima, this was sexist negative discrimination. They were female people being judged on whether they looked 'feminine' enough to be in the sports categories that they were competing in. They did not have any male physical advantage coming from a male puberty.
They were subject to sexism, negative discrimination that was illegitimate. There was never any reason to discuss their competing.
And, they were never excluded officially from any competition for not being 'female'.
In regards to these two male athletes, describing them as 'male' which is their genotype, with the specific 'with male pubertal advantage' accurately describes the basis that they are being subject to legitimate discrimination. Based on their 'sex'.
Continuing to describe them inaccurately as 'female' because that is how they 'feel' or because that is their historical background but does not accurately describe their material medical status, leads to significant confusion as we are seeing. You are continuing this confusion, all the while you are also expressing your disapproval and making moral judgements of other who make different choices in their language to you.
But, in comparing Serena and Fatima the way you have is a false comparison.
And in doing so, you are effectively erasing their negative sexist discrimination.