I actually think the most wonderful V1 example of this today is
@FDavidsonT's new travel booking app
@OdessiaTravel.
It's a new example of chat interface for a particular problem that has lots of rich cards/photos/structured data/structured questions. (which is what Brian says is missing chat-only interfaces)
And under the hood it has refined agents that have bespoke prompts/skills/loops/model switching/agent orchestration etc.
Not an investor. Just seeing the future UI paradigm get built right in front of me and can instantly see that it's better.