I like my operating system talking English, but using my regional keyboard layout. During installation I selected the following:
- HU (QWERTZ) keyboard layout
- Europe / Budapest
- US region only, so the system stays in English
After the installation, SDDM still uses US layout, only after logging in it changes. I think it would make sense to apply the selected layout to the logon screen as well, especially if only one layout was chosen during installation.