bug#48254: 28.0.50; minibuffer does not show the prompt of a command on first invocation

[Gregory Heytings]

I'm not sure I understand what you want.  Where do you want the Dvorak 
input method to be active, and where do you want it to be disabled?

As I said earlier, if you don't want to enable english-dvorak in the 
minibuffer, all you have to do is to remove the line:

(add-hook 'minibuffer-setup-hook (lambda () (set-input-method 
"english-dvorak")))

Then you'll have a consistent behavior: the Dvorak input method will be 
active in buffers you edit, and for everything else (key bindings, 
minibuffer interaction, help buffers, ...) it will be disabled.

If what you want is to activate the Dvorak input method only for some 
specific commands that use the minibuffer, you can use

(defun enable-english-dvorak ()
  (if (memq this-command '(find-file execute-extended-command switch-to-buffer))
      (set-input-method "english-dvorak")))
(add-hook 'minibuffer-setup-hook #'enable-english-dvorak)

and adapt the command list to suit your needs.

Does that solve the problem you have?