I haven't seen the Security bug yet, before or after any update or clean install.
@Sibro.o,
In my case the Security windowsdefender link (Microsoft.SecHealthUI) problem showed up only on machines upgraded directly from 21H1 to 22000.120 or 22000.132. Not seen in clean installs or updates from 22000.100.
Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage
So many variables ! 😉
No problems with Windows Terminal on any machine,
The System link is there on Win + x on a Beta machine, missing on all the others.
B.T.W. When I click on that System link opens System->About
Just another shortcut, same as clicking on This PC Properties