Is anyone else having issues with the RCS chat features not working on your phone recently? It was working until the last few days. Both my Note 10 and my wife's S10 are having the same issue. Texts are being sent out "green" and even after turning the chat feature on and off, it still won't work.
You may have already tried this, so forgive me for mentioning it if so, but have you tried turning the chat features on in your Samsung Messages app? Here is where you find that.