Need a comprehensive guide to foreign language support on Apple products, especially iPad.
Is there a comprehensive guide as to the foreign language support on Apple products?
Using https://support.apple.com/en-us/HT201794 as a guide to Apple foreign language support, the keyboards on this page look like those for Windows. They do not look like what I have on iPad, and they do not show the "alt" commands found on iPad.
Keyboards on the Apple Support page look a lot like the Windows keyboards, whereas I know my iPad keyboard layouts are different. Also, the iPad Bluetooth keyboard has significantly more (and different) extended character sets than shown for Windows or Apple (above).
Where can I find these additional documentations?
iPad Pro 12.9-inch, 2nd Gen, Wi-Fi