Hi again!
Just tested the USB-C Earpods on my Galaxy S7, and can confirm they do everything you want!
Pressing the buttons turns the volume up, down, and pressing the centre plays/pauses.
As I said in my previous post, be warned that since it's usb-c, not all devices may support it (e.g. I put the same earpods in my OLED switch and it didn't even detect them).
I've now tested them in the following:
Steam Deck - Works perfectly Galaxy S7 - Works perfectly OLED Switch - Does not work at all Macbook pro - Works perfectly iPhone 15 pro max - Works perfectly
If you have any other questions let me know!