I dont use doom, but I am fairly sure you can choose to use standard Emacs keybinds if you want. I imagine they haven't changed the default keybindings for that though, and I believe they use a leader key to access things to make it easier in evil

Doom Emacs and Spacemacs both provide a Vim-style editing approach (multi-modal editing with the Evil package) as well as the classing chord-keys of Emacs C-c C-x, although I think a significant number of users opt for the Vim-style editing (as it is much faster once learned) Spacemacs and Doom prefer sequential key bindings, e.g SPC f f to find a file to open. Many of the chord-keys C-c C-c style are still there if they are defined in the underlying Emacs package, My typing has become much more effective with the Vim-style and sequential keys and find them much easier to remember, especially with Spacemacs. I have a https://practical.li/spacemacs/spacemacs-basics/evil/ which is largely applicable to Spacemacs and Doom Emacs.