My point, this entire conversion, is the issue is complicated and needs more research. Yes some statistical differences in strength seem to remain. That doesn’t always translate to an advantage in a specific sport though. As I’ve mentioned before, and your own post references too, bone density doesn’t change. Moving around heavier bones with less muscles is a factor in determining any specific sport advantage.
You also ignore this entire section directly after the part you mention:
relative percentage lean mass and fat mass (and muscle strength corrected for lean mass), hemoglobin, and VO2 peak corrected for weight was no different to cisgender women. After 2 years of GAHT, no advantage was observed for physical performance measured by running time or in trans women. By 4 years, there was no advantage in sit-ups.
Surely there’s more to it than just strength right?
Again, my entire point is the issue is hard to study and needs more research. Surely you can see the value in using non-athletic populations in studies in order to get a sample size, even though its not perfect, right?
You are the one saying the issue is a 100% decided scientific fact. You have a greater burden of proof associated with that claim, which you have not demonstrated. Until you do I’m done with this convention.

Understand it might be hard for her at first even if she’s very supportive of trans people. You’ve had years to process these feelings, you can’t necessarily expect her to me able to process everything herself right away. It might have implications for her own sexuality, the future she imagined together with you, etc.
My partner and I are going through similar things. It’s still hard sometimes but we’re both really trying to make things work, so I have hope it’ll all work out. Open and honest communication is very important.
One thing we’ve had to work on is including each other in our processing, instead of one of us doing processing on these things and then presenting it all at once to the other.