Hello Jlad121,
We would like to see how we can help you with activating Siri with a button. Have you had a chance to restart the iPhone since changing this Setting? If not, please do so now and let us know if the issue persists. For more information about using Siri with a button visit: Use Siri on iPhone - Apple Support
"Activate Siri with a button
When you activate Siri with a button, Siri responds silently when iPhone is in silent mode. When silent mode is off, Siri responds out loud. To change this behavior, see Change how Siri responds.
- Do one of the following:
- On an iPhone with Face ID: Press and hold the side button.
- On an iPhone with a Home button: Press and hold the Home button.
- With EarPods: Press and hold the center or call button.
- With CarPlay: Press and hold the voice command button on the steering wheel, or touch and hold the Home button on the CarPlay Home Screen. (See Use Siri to Control CarPlay.)
- With Siri Eyes Free: Press and hold the voice command button on your steering wheel.
2.Ask a question or make a request.
For example, say something like “What’s 18 percent of 225?” or “Set the timer for 3 minutes.”"
Cheers!