"Hey Siri" only works for a short time on my new iPhone 16

Hey Siri only works for a short time on my new iPhone 16. I keep going through the steps to reset it but it stops working. This is the fourth time I’ve reset my Siri on my iPhone with the steps provide. I am constantly having to go back and use the side button in order for Siri to work.

[Re-Titled by Moderator]