Ask HN: Is there a way to disable "Chat With Gemini" on Android?

My Android phone just sent itself a text message talking about it's "Chat with Gemini in Google Messages" functionality. Tapping "No Thanks" doesn't seem to do anything. Anyone know if there's a way to completely disable Gemini on my phone? I receive customer confidential info on my phone and am obligated to take "reasonable steps" to avoid third party disclosure. Sharing the contents of text messages with Google's AI seems like a problem.