I have a Blue series fan switch running a light fixture that has both the light and fan controlled on the same switch
I actually never use the fan, I really don’t see any point for a fan to be there personally, but removing it would be a pain.
However the light is important, so I put a fan switch there because I was worried that a regular dimmer switch could have an issue if the fan was turned on by someone. I leave the light pull-string on, and use the fan switch to control the light.
The weirdness is that if I use the switch during the day, and then turn it off, every single time I wake up to see the light turned on! WTH? In home assistant all I see for history is that it was seen as turned on at like 11:57. But there is no activity log, I don’t have any automation that would trigger that. The time is always within a few mins of midnight. Very strange.
Maybe I would be better off disabling the fan or removing it, but that would involve digging around and swimming in an attic of blown-in insulation, so not super great fun.