to update to 12.1 i had to change on
Z490 Vision G the SecureBootModel to value from Disabled to the one corresponding to my SMBIOS profile in order to see the update
thank to
CyCLoBoT who mentioned this, see link
Today Apple released macOS 12.1 Update, a major software update to macOS Monterey. Update any supported system using the built-in Software Update functionality through the macOS System Preferences pane. What we know about 12.1 so far... macOS Build 21C52 Updated graphics, audio drivers Install...
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