The expression 'fat fingers' concerns the phenomena where users (including myself) lack the eyesight and finer motor skills required to type accurately on a small keyboard, so a slightly larger display makes all the difference.
Perhaps you simply have those fine motor skills (and good eye sight) so a larger device isn't necessary to prevent typos and remain productive.
I was able to thumb type at high speed and accuracy on the 3.5 inch iPhones. On modern iPhones, I produce more typos than ever, because apparently Apple thinks it knows which key I meant to hit better than I do, even with all the autocorrect and suggestions turned off.
I've banned social and don't use my phone much anymore, so it's less of an issue than it used to be, but it's really frustrating when I'm clearly hitting the right key and it insists on pretending I hit an adjacent key.
It’s so strange. Like, the obviously correct thing is to have a small ML model that learns the user’s typing patterns, which of their own typos they fix, which auto- and suggested fixes they reject, what rare, made-up, and jargon words they use, what acronyms they use, etc.
Instead, after 20 years of iPhone usage, I am not allowed to type the names of projects I use all the time without fixing the autocorrect every time, or (as you say) carefully hitting the left side of the F key because dead center will produce a G.
I wouldn't assume that.
The expression 'fat fingers' concerns the phenomena where users (including myself) lack the eyesight and finer motor skills required to type accurately on a small keyboard, so a slightly larger display makes all the difference.
Perhaps you simply have those fine motor skills (and good eye sight) so a larger device isn't necessary to prevent typos and remain productive.