Curious. 95% of my circle are Australian, 80% of them use iPhones, and absolutely all of us use iMessage for nearly all text communication.
Signal is used for the iPhone to Android communication sometimes, but honestly it’s mostly just SMS.
Fascinating. Most of my circles are Australian, the majority have iPhones, and yet I have never seen anyone mention iMessage. Everyone I know uses Facebook Messenger and WhatsApp, with Telegram and Signal being very distant third and fourths.