Hi Doug,
Nice to meet you! My name is Randy and I'm an independent advisor.
You can try these, open Edge, tap the three-line menu, go to Settings > General > Copilot, and toggle off "Show Copilot" so the icon disappears. If it still talks back, you can check Copilot’s chat settings for voice options or turn off text-to-speech in your phone’s accessibility settings. If you don’t see the Copilot option at all, make sure Edge is updated sometimes the toggle only shows up in newer or beta versions.
Kind regards.