I'm seeing a similar issue on 19.10 doing a french install on an uefi machine
- boot from the usb stick with Ubuntu Desktop 19.10
- select the 'install' item from the text-mode-menu
- in ubiquity select french
- keep the default selected keyboard (french - alternative)
-> typing on that screen the layout is azerty
- using custom partitioning (in case that makes a difference)
- on the user creation page, the layout is english/qwerty
I'm seeing a similar issue on 19.10 doing a french install on an uefi machine
- boot from the usb stick with Ubuntu Desktop 19.10
- select the 'install' item from the text-mode-menu
- in ubiquity select french
- keep the default selected keyboard (french - alternative)
-> typing on that screen the layout is azerty
- using custom partitioning (in case that makes a difference)
- on the user creation page, the layout is english/qwerty