Quick Action is very helpful in onboarding, and then never helpful again. It's also not fully explained during onboarding that it will never come back. I would love to play quick action for adding emails to contacts without them (because they didn't properly pull in from Google), or to review keep-in-touch timings and change them. Right now every day I'm going through my contacts by alphabet letter and reviewing if there's someone I want to contact more frequently.
Quick Action should be revamped to not JUST be a category / initial keep-in-touch tool.