I used them for Christmas lights with that sundown condition (+just a time trigger for off at night).

Also came in handy for a light switch that was unfortunately on the wrong side from a table, now its just uses a motion sensor when someone walks to the kitchen and tells a third reality smart switch (screws on top of regular switch, so it works with any light type (e.g. fluorescent)) and is renter friendly.

Bonus points for no lag at all compared to crappy cloud dependent garbage and no need for apps for each device manufacturer. Just look if it is home assistant compatible and no cloud before buying devices since it us a lot harder or impossible in some cases to de-cloud them later.