iPhone Control Center no longer showing devices on lock screen

A while ago (I’m talking years) when I was in the same room in my house as a HomePod playing music, or something playing on the Apple TV, my iPhone would automatically show the control center for that device on my Lock Screen. For the longest time now that feature just randomly stopped working. I can go into control center and manually change device, but I would like it to happen automatically like it used to.

I am on an iPhone 16 Pro Max, running the latest iOS - but interestingly my wife is on an iPhone 13 running iOS 15 and the feature still works fine on her phone.

I don’t think it worked on my previous device (iPhone 14 pro max) either.

[Re-Titled by Moderator]