The problem was that Google started pushing RCS onto everyone, and RCS isn’t accessibly by the same API SMS is. What happened is that Signal would send an SMS, and the response would only appear in Google Messages through RCS.
As someone who never uses RCS (and from an area where nobody else uses RCS knowingly), the removal of SMS capabilities really sucked.
The problem was that Google started pushing RCS onto everyone, and RCS isn’t accessibly by the same API SMS is. What happened is that Signal would send an SMS, and the response would only appear in Google Messages through RCS.
As someone who never uses RCS (and from an area where nobody else uses RCS knowingly), the removal of SMS capabilities really sucked.