[RunningDroid]

> I'd take a one-touch button to temporarily disable autocorrect/auto-capitalization. Either toggled or until next space.

AnySoftKeyboard¹ has this²; the button disappears with the suggestions but the setting only "sticks" until you dismiss the keyboard.

1: https://anysoftkeyboard.github.io

2: https://i.imgur.com/CE1xeGY.jpeg