I'm on Chrome 110 on Android 10, and I'm seeing the key symbol indicating I'm in a password field when I'm on an edit summary field:
That seems wrong.
Mobile Chrome does this for all inputs regardless of whether or not they are password inputs. For example:
Mine also shows a credit card icon, though there is no case when I would need to use both a password and a saved credit card in the same field. I assume the reason these buttons is exist are for poorly programmed websites which don't automatically prompt for the relevant autofill.
You know it's not interpreting it as a password because you see plain text instead of "•••"
textareas otherwise you'd see it elsewhere as well....!