On iOS, 1SE can add the location where you captured a snippet (for example, Los Angeles, CA) as its caption.
Tap Profile.
Tap the settings icon.
Select Project Settings.
Turn on Prefill Caption with Location.
This affects new snippets and Quick Fill previews. Snippets you've already added keep their captions.
When adding a caption to your snippet, you can manually search for a site or use your current location by tapping the GPS button in the text field.
This needs location access for 1SE, which you can allow in your iPhone's Settings.