Sorry for delay.
> I'm a bit confused. You said you were installing Fedora in Russian language. If you pick Russian language in the initial anaconda screen, you don't need to configure keyboard layout anymore, because the Russian layout should be already selected. What am I missing?
Yes, Russian layout selected automatically.
> Also, if you don't create a standard user during installation, on the first boot on the installed system (GNOME), it should boot into graphics and force you to create a user. But you say you create the user using root (I presume by switching into a VT). So what exactly do you do about those "create a new user" dialogs?
I create new user after reboot after installation - "force you to create a user".
> One thing that strikes me as odd is that you have the "Region & Language" dialog in English, even though you have Russian language selected. If I install a new system with Russian language, the whole system is translated.
Yes, system is translated, but I create a screenshot with English language and only for show you which settings is selected.