>And the chat in Codex is badly broken and doesn't support the one feature I use in almost every chat.

what is badly broken about it, and what feature does it not support? im a pretty casual user, so i guess i havent noticed this bad breakage.

Everything. The current implementation is unusable. If you see differently then probably you are looking at Codex chats, not chats.

whether i use the new "chat" button that just appeared after the update, or use the familiar chat underneath the "projects" heading, everything appears to be working just fine. (i am using "ChatGPT Work" not "ChatGPT Codex")

is there a 3rd chats somewhere that i am missing?

which feature?

Temporary chats.

Well, at least for me, they are not broken. They are gone.