This article explains how to disable and remove suggestions from your Siri virtual assistant on iOS devices and Mac. These instructions apply to devices running iOS 12 or later and Mac OS X 10.9 or later.
How to Disable Siri Suggestions on iPhone Lock Screen and Home Screen I Siri Suggestions iOS 15
If you don't want to receive suggestions from your virtual assistant, open the Settings app to turn off the suggestions feature.
Open the Settings app from your home screen.
Select Siri & Search.