TIL! and TIL that once in a blue moon, discussions dot apple has _useful information in it_! 😂
You _can_ make macOS not dim the clock when a Focus is active - just have to make sure Focus itself is also in the menubar: discussions.apple.com/thread/2
This was a really dumb reason I was avoiding using Focuses for things like "hide my phone's work apps after work hours". No more!