1) Create a Shortcut that prompts for a numeric value when run.

2) Run the Shortcut and while the popup dialogue is displayed, do the
swipe-up gesture to open the App Switcher.

Normally, invoking the App Switcher causes the frontmost app to 'shrink'
and join the carousel of open apps so you can switch to another.

In Shortcut's case, the carousel appears as expected and you can still
swipe through the open apps but you can't switch to any of them.

As I said, quirky. :-)
--
Bruce Horrocks
Surrey, England

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)