alt Hacker Newssomeone posted high speed videos a few months ago where the keyboard will popup the key you thought you pressed (therefore did press, as far as the UI is concerned) but iOS will insert a different character anyway.
Replies
robocat • today at 7:50 PM
Some of those videos are misleading. They sometimes slide a finger off one key onto another: taps need to not move.
Personally, I use the slyde to type rather than tapping to type and have gboard installed for when slyde doesn't work (I think the Apple algos are not quite as good as Google's).
https://news.ycombinator.com/item?id=45662685