The other trope that For All Mankind really fumbled on was the decompression of the space station (I'm avoiding spoilers for those that don't know why). It followed the trope of massive amounts of air continuously rushing out of the station when that can only happen when there is a massive amount of air available to continuously feed the decompression. In reality, it would be a short rush of air to vacuum as the window was large enough for most to escape very quickly.
Corey, James S.A.. Nemesis Games (The Expanse) (p. 425). Orbit. Kindle Edition.
(Purposely being vague to avoiding spoiling anyone on this great series)
I rewatched this moment on Prime and I remembered it correctly. While she exhales after last words slowly, she inhales sharply before pressing the button.
I remember it probably because I watch everything with subtitles on and that was written. I now watched it without to avoid being biased and it still holds.
In addition she was exposed to the vacuum about 40 seconds before using the shot.