Prerequisites :

The base keyboard layout has to be configured as US QWERTY.

When two or more languages/keyboards are installed on the system, the default 'Alt + Shift' sequence will interfere with the AHK scripts.

To avoid this, you can disable the interfering key sequences at :

Settings -> Time & Language -> Language -> Spelling, typing & keyboard settings (on the right) -> Advanced keyboard settings -> Input language hot keys

Please note that on the standard US QWERTY, the sequence 'Left Alt + Shift' also gets mistakenly triggered by 'Right Alt + Shift', resulting in an unexpected keyboard layout change...