Re: here is no lock screen or password requirement. did Dell tech set up Win 11 as local account without password for you?  You can go inside settings to set up Microsoft account log in if pc is currently set up as local account.  you can also keep the local account but add a password.
I have an XPS 8940 running Windows 11.  I was trying to get the Dell Keyboard and Mouse to work on Bluetooth but could never get them to wake up the computer from sleep mode.  In the process of trying to accomplish the above, a Dell tech updated my BIOS to 2.3.0 10/7/21.  Since then, when the computer starts (power on or restart), there is no lock screen or password requirement.  Comes right up to Windows 11 21H2 22000.376.  At this point the keyboard and mouse are running USB/wifi.  The keyboard will wake up the PC but not the mouse.  That is secondary to the issue of no lock screen.  I would really like to get that fixed.
XPS 8940, no lock screen on startup after BIOS update