Comment 3 for bug 1826409

Quick summary (from my POV, after discussing this with Marco in #ubuntu-bugs):

The issue described here is that the keyboard layout chosen during the Ubuntu 19.04 amd64 (default flavour) installer step does not carry to the installed system, where only the US-English keyboard will be available no matter what was set during the installer.

This is not an issue with ordering of available / configured / installed keyboard layouts. The layout chosen during the installation is simply discarded, is not configured on the installed system, the installed system always has the US-English keyboard layout installed exclusively.

This may turn out to be a result of the issue described in bug 1826567 (although some of the initial description here suggests differently).