Huh. As I told another commenter, I don't remember ever changing my font size, but it's possible that I did and forgot.
I took screenshots of my share sheet[0] and my text size settings[1].
I took screenshots of my share sheet[0] and my text size settings[1].
I've also wondered where the functionality went.
Without this article I would never know that it's actually there but hidden.
Somehow I feel really bad about that.
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1) I don't remember if I've tried to adjust the font size. My pet peeve regarding that is the font in the Notes app which has a and o similar enough to allow false reading of anything that is not plain common words.