Just for completeness, below is a snapshot of the switch wiring. I just went upstairs to check the bedroom that is above my office. That bedroom has 2 wall switches to control a fan and its lights. Here's the ironic part: the bedroom has the same fan/light fixture as my office, and, for some reason, the freaking ring is not secured in place, so I could have figured out how to loosen the one in my office
For the office, I guess the easiest solution is a "smart" fan that controls both fan and lights via a remote or voice assistant. The wall switch to nowhere is annoying - is it a possible hazard?
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