What does the "Learn from this App" setting mean in "Siri & Search"?

ios siri privacy settings

Solution 1:

I found that developers use the NSUserActivity API to report activity to Siri and other parts of iOS.

Therefore, I will consider this question answered.

Related

Battery turned off even if it has life [duplicate]
Skitch failed to work for Big Sur even though I have granted Screen Recording
How to permanently turn off check spelling while typing in macOS!
Erased the disk with TRIM disabled and enabled it afterwards, will my previous data still be trimmed?
How do you copy a meeting in Outlook 2016 on Mac
Siri will not understand one particular word I say and its driving me nuts
How to maintain extended attributes with file transfer
How can I remove all my downloaded YouTube videos in the YouTube iPad app in one go?
Spotlight search useless for basic core apps
How can I earn a bunch of arrowheads quickly in Psychonauts?
Resources packs are missing from the DLC page in Dead Space 3. How can I spend my ration seals?
What does "Guardians Make Their Own Fate" mean?