Google has an app that mixes SMS and messages as well transparently. They put this in the android SMS app at some point. Then they started to ask me daily to s

Google has an app that mixes SMS and messages as well transparently. They put this in the android SMS app at some point. Then they started to ask me daily to switch to using their messaging thing whenever possible. That's when I went on f-droid and downloaded the first SMS app I found. I can't understand why the SMS app should send anything else than SMS. After all, I'm aware that using any messenger made by google means constant migration.