This was one of the core features of using Signal for me. I wish they had implemented RCS and more features for SMS instead of removing it. I'm very disappointed with this feature.

As a side note, I'm on the beta, and recently got "Signal Stories". This immensely annoyed me, and had to dig through to remove it (since it wasn't obvious). After the whole crypto thing and these decisions, it might be time to find another secure messaging app.