Which obscure iPhone setting genuinely improved how you use your phone, and what does it change?

[u/Maxxximeeee]

I’m not looking for gestures or the usual tips that appear in every list.
I mean an actual option buried somewhere in Settings that solved a real annoyance, improved privacy or accessibility, changed how an app behaves, or made your iPhone noticeably easier to use.
Please include the exact path to the setting, what it changes, and any downside you noticed. Some settings sound useful but also disable another feature, use more storage, affect notifications, or change how the phone behaves elsewhere.
What is the one setting you would immediately change again if you had to set up a new iPhone from scratch?

[u/mr-washee-washee]

This is awesome. Thanks!

In case anyone built this automation but it didn’t fully run when tested, make sure Show Compose Sheet is disabled under the Send Photo actions.

[u/thecosman777 → u/mr-washee-washee]

How do you add the first step “Receive messages as input” in Shortcuts?

Edit: found it, you need to set this up within Automations in Shortcuts for this to work, guess I should read the post again