I have long used the double back tap to run a shortcut to set the media volume to 0 and switched it to the action button. I work in video production which involves long hours of sitting around and moments where absolute silence is crucial. This was I confirm a video isn’t going to loudly announce itself in the middle of a take. It’s also just generally useful in public.
Yeah occasionally, not super often, I wouldn’t set it to something you aren’t ok with triggering accidentally like turning on all the lights in the house or something. The back tap also doesn’t work all the time either so I’m glad for a action button as a more reliable replacement. But yeah it’s nice to have.