About half way through article: “The new lock screen is easier to use, no longer requiting you to ‘slide up’ to reveal the password field (which now sits atop a blurred version of your desktop wallpaper):”
Great! That UI was horrific. Hitting a key like spacebar didn’t unlock.
Aside: I completely broke the Ubuntu login screen yesterday. I did `apt remove evolution*`. Unfortunately the login screen depends on evolution-data-server, so I couldn’t login from lock screen, and after reboot it dropped me to TTY!! Gnome is just getting crazy - it would be like Windows login depending on MS Outlook! Gnome is a big ball of interdependencies, becoming more like Windows. I get it, but I don’t like it. Edit: FYI: fixed in TTY3 (ctrl-alt-F3) by `apt install --reinstall ubuntu-desktop` from memory.