The email send button is such a bad example : for 5 seconds spent on finding the button the first time, one will use this same button thousands of time and know perfectly where it is.
On the contrary, one will spend time writing the email in the long run. The new design has way less room for writing. Also, just shifting the place of the button would have resolved most of the problem.
Also, RIP small phones. These new "designs" take so much space for nothing.
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