Very new machine, very good spec., supplied with Win 11 22H2.
Oddity: open “Windows Security”: panels show – for about 5 s, then the window closes. Repeat: window opens blank white (except for tiny title annotation top left), vanishes in 5 s. Repeat ad infinitum. Cannot get at any settings, it seems unless I go to Start | Settings | Settings | Privacy and Security | Windows Security (*1) (tedious!) … but then Device Security (which has a warning) opens the window (no warning!), but clicking Home causes it to close again, 5 s. (All other options are functional.)
A bug, I suggest.
I then tried typing “Windows Security” in the Start | search bar. That does not work either. The first time disabled all the buttons in the panel at (*1) above! Then various combinations of vanishing windows, blue shield, white window … Not good.