Ive upgraded my XPS 15 7590 to Big Sur, and the battery drains a little bit more than I like, and want to downgrade back to Success' href='/2020/12/install-macos-catalina-on-supported-pc.html'>Catalina, but how do I permanently disable updates like one would on iOS by using AppleTV profile, as in what could I do to block updates and permanently shut off notifications?
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