Same issue here. Some in our group chats see it, most don’t. I could not pinpoint what causes it to work, e.g. Beta GM does not seem to have it enabled universally either since a lot of our group participants are running the beta build.
The same goes for reactions, they don’t work reliably for everyone either. Some see me react, some see me send a text and vice versa (e.g. I see reactions properly for 3 out of 10 chat participants, the rest has them come through as basic texts instead).