Set emacs up to ring the bell using an external program under Wayland, since the Wayland devs have something against the traditional bell supplied by Xbell.

tkb-wayland-bell.el

(when (getenv "WAYLAND_DISPLAY")
  (message "Running under Wayland")
  (defvar tkb-beep-sound "/usr/share/sounds/freedesktop/stereo/bell.oga")
  (defvar tkb-beep-program "ogg123")

  (defun tkb-bell ()
    "Ring the bell."
    (interactive)
    (start-process "Beep" nil tkb-beep-program
                   tkb-beep-sound))

  (setq ring-bell-function #'tkb-bell)

  (unless (file-exists-p tkb-beep-sound)
    (yes-or-no-p (format "Error: tkb-beep-sound is set to \"%s\", which does \
not  exist!\nUnderstand? "
                         tkb-beep-sound)))
  
  (let ((path (split-string (getenv "PATH") ":")))
    (unless (file-installed-p tkb-beep-program path)
      (yes-or-no-p (format "Error: tkb-beep-program is set to \"%s\", which does \
not exist!\nInstall vorbis-tools! Understand? "
                           tkb-beep-program)))))