For me, I have shortcuts on my Mac to change the wallpaper based on time of day (light or dark), but that's it. I'd maybe be interested in using more if I could think of a good use case, so share yours, if you have one
I have a shortcut that turns on my tv’s in the morning (Apple TV), switches them to Spotify, and plays a logo music playlist for me. It lets me have music playing throughout my house as I’m waking up making breakfast