>I truly don’t understand what the hope to gain from self-classifying this is “feminist”.

I like it a lot. For example, it's obvious that if the NSA wanted to come into a feminist open source phone baseband for an open telephone and say "We men will tell you who you can and can't call" it will be rightly called out as patriarchal nonsense. Yet that's the world we live in today. Just the other day Zoom gave me a password of "OPSexr" on a business meeting (I created the Zoom call myself). Obviously this was a hack by NSA and not a first-party chosen by Zoom (which is professional meeting software) or random (the word doesn't have the entropy of passwords).