Indeed. I myself am on Doom Emacs but I've increasingly been thinking of moving over to vanilla Emacs. I'm a bit worried about the transition period due to all the keybind differences but I'm sure it's not too bad.
I'm also a Doom user, albeit a new one. What is making you consider the switch?
Tell your agent what parts of Doom Emacs you actually use, and ask it to build a minimal init.el containing only those parts. You're probably only using ~2% of Doom, so the resulting init.el will likely only be a few hundred lines, and most of those lines will be comments and key bindings.
It won't be a perfect transition, but it will make it a lot smoother.