Unfortunately, the chat is still broken. I did an Ascenders ride this morning and was right next to someone who was clearly responding to chat messages that I never saw — so I was reading half of a conversation and couldn’t make sense of it. I also saw other “half chats” from further way.
If you look at the wording in the update about the fix, it sounds like they really only focused on making it so beacons could see chat and not fixing that chat for riders overall. It also seems the red beacon designation is still bouncing around a bit as I saw one complaint from a sweep that her beacon had been swiped.