Open the Gemini app
Tap your profile picture or initial
Tap Settings
Tap Google Assistant or Digital Assistants
Select None or Google Assistant, if available
Open your phone’s Settings app
Tap Apps
Tap Default apps
Tap Digital assistant app
Select None or Google Assistant
Open the Google app
Tap your profile picture or initial
Tap Settings
Tap Google Assistant
Tap Digital assistants from Google
Turn off Gemini or switch back to Google Assistant, if available
If Gemini is set as the default assistant, disable its app permissions or uninstall updates if needed