From their repo:

Plasma Login

Plasma Login provides a display manager for KDE Plasma, forked from SDDM and with an new frontend providing a greeter, wallpaper plugin integration and System Settings module (KCM).

What we want

  • Great out-of-box experience in multi-monitor and high DPI and HDR
  • Keyboard layout switching
  • Virtual keyboards
  • Easy Chinese/Japanese/Korean/Vietnamese (CJK) input
  • Screen readers for blind people (which then means volume control)
  • Remote (VNC/RDP) support from startup
  • Deeper Plasma integration including:
    • Display and keyboard brightness control
    • Full power management
    • Pairing trusted bluetooth devices
    • Login to known Wi-Fi for remote LDAP
    • Random Dent@lemmy.ml
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      22 days ago
      • Types in username and password

      “Perfect! You are now logged into your computer. Enjoy your desktop!”

      • Nothing happens. Try to log in again

      “You’re absolutely right, I failed to log you in while claiming you had actually logged in. Good catch! I’ll log you into your system now. Have fun!”

      • Nothing happens