Yes, I did do some online searching.
It seems the end-of-circuit switch isn't that common, at least on the interwebs. There is also a new code requiring a capped neutral, which junks up the search results and isn't relevant since I'm not ripping out the ceiling on the chance someone wants to add "connected home" devices to the basement xx years into the future on a house I plan to sell this summer. Hopefully my graphic shows the issue...
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