I knew the ringtone was officially dead when I watched an Apple-produced show on AppleTV+ and they used a vibration noise as a sound effect for a phone ringing.
I've noticed in a lot of newer movies, people's phones only vibrate and they always notice it and grab it (unless the script says they miss the call/text for plot reasons). Of course, the scene is always quiet at that moment, so you can hear the vibration effect and believe that the character does too. In real life, it doesn't often work that way.
It's become almost rude to have a ringtone these days.
An US thing?
Here in the Netherlands it would seen as very peculiar to have a ringtone enabled.
Here in Germany (actual residence), Portugal and Spain (as my home culture), Italy and Greece (relatives), it is still quite common, unless people are at work, or at places like cinema and theater.
The point is that it's not only seen as odd in the US. That there are counterexamples where it's normal doesn't change that.
There are places where one should mute the phone, like cinemas, offices, cafes, etc. Other than that, I'd like to hear when someone is trying to reach me.