As for ChatGPT: I just don't use it that much anymore. I played with it alot. and it was kinda fun, but when I tried to do anything much more productive with it, it just wasn't that much help.
LangChain and AgentGPT looked more interesting, but when I watched some videos about them on youtube they didn't seem to add accomplish much and got stuck in loops.
The biggest problem is it's just not that reliable.
I think there's an last mile type problem with it.
Also, there's a governance issue with it. Who gets to decide how to use it or how it works. I've seen no democratic options for it. And a free un-encumbered version seems more dangerous than a corporate controlled one.