Toggle between multiple languages on iPadOS with an external keyboard
If you have more than one keyboard language on your iPad, you can move from one to the other using your external keyboard. Here's how:
Press Shift + Control + Space bar.
Repeat the combination to move between each language.
This article is applicable to the following Logitech for Business keyboards and combos:
Keyboards
MX Keys Mini, Wave Keys, Ergo K860, MX Keys
Combos
MX Keys Combo, MX Keys Mini Combo