I wrote a post on how to use Autologon.exe and PowerShell, thanks Johan Schrewelius, to make Autologin in Windows 10 a little bit more secure a while ago. https://ccmexec.com/2020/08/windows-10-secure-autologon-powershell/
Taking this one step further I wrote a blogpost for 4Sysops.com on how to configure a multiapp Kiosk where that script is used as part of the solution to configure a multiapp Kiosk.
I hope you find the script/solution useful!