While I do not doubt this happening, nor it being sexist at its core, I find no mention of it on the linked wikipedia article.

EDIT: Ah, it actually links to a now-defunct british spacecentre article in the original TIL with the following quote:

When Svetlana arrived the space station, she was reportedly handed an apron from her male crewmates and jokingly told to get to work in the kitchen. But she’s also described in fond terms the flowers she received upon arrival: “They gallantly presented me with flowers they had grown in orbit and those plain flowers in a transparent box were the dearest present to me. We hugged each other, kissed each other, in a word, our meeting was the usual meeting of friends who had not met for a long time.” After this initial meeting she was quickly able to establish a working, professional relationship with her crew.

and there’s an '82 NYT article mentioning it here

Not all notifications go through FCM but all push notifications do as far as I’m aware - which is what the previous comment and the post title are talking about.

It is, in fact, worrying for privacy implications on the one hand and a real monopolizing factor on the other since if you wish to deliver an app which needs to implement such notifications you’re using Google’s service or constantly drain the user’s battery.

There’s UnifiedPush which tries to provide an open alternative but so far unfortunately still sees very little adoption.