One of my friend groups (that I regularly meet for board game nights) still uses Group SMS for chat. I'm in another one with my parents. I use iMessage with my SO. A few friends reach out to me via SMS still (one even calls me and asks me to call him back in voicemail...that seems so archaic now).
But yeah, that's about it. Everything else is via some messenger service, mostly Discord or Facebook.
All, and I really do mean ALL, messages that arrive on my phone are over whatsapp, telegram or discord.
The green/blue bubble thing is classist and problematic and bringing it up is frankly embarrassing.