;;; code I suspect to be interacting
(defun or/org-agenda-redo-if-single-window-in-frame ()
  (when (and (eq major-mode 'org-agenda-mode)
             (frame-root-window-p (selected-window)))
    (org-agenda-redo)))

(add-hook 'window-configuration-change-hook
          #'or/org-agenda-redo-if-single-window-in-frame)

(advice-add 'org-agenda-follow-mode :after (lambda (&rest args)
                                               (org-agenda-redo)))

;;; code that is supposed to silence org-agenda-redo's message
(defun or/org-agenda-redo-inhibit-message-advice (oldfun args)
  (let ((inhibit-message t))
    (apply oldfun args)))

(advice-add 'org-agenda-redo :around #'or/org-agenda-redo-inhibit-message-advice)