LangBar is a free macOS menu bar utility that fixes text typed on the wrong keyboard layout: select the garbled text, double-tap the Control key, and it's corrected in place.
- Nothing happens when I double-tap Control. Open the LangBar menu (its icon is in the menu bar) and check that both Accessibility and Input Monitoring show as "Granted." If not, click "Open" next to the missing one and enable LangBar in the System Settings pane that