Background: the origin for bug #71356 was that I was trying to get org installed from elpa, which apparently didn't work and Emacs (master) took the bundled mode instead.

Observation: loading org from elpa with M-x p-l-p leads to errors and emacs(master) freezing for a long time. When looking at the *Warnings* buffer, I see:

Warning (comp): org-clock.el:2635:23: Warning: the function ‘org-add-archive-files’ is not known to be defined.
⛔ Warning (comp): org-clock.el:962:40: Warning: the function ‘org-element-at-point’ is not known to be defined.
⛔ Warning (comp): org-clock.el:753:30: Warning: the function ‘org-duration-from-minutes’ is not known to be defined.
⛔ Warning (comp): org-clock.el:751:36: Warning: the function ‘org-duration-to-minutes’ is not known to be defined.
⛔ Warning (comp): org-attach.el:759:20: Warning: the function ‘org-element-context’ is not known to be defined.
⛔ Warning (comp): org-agenda.el:10271:6: Warning: the function ‘org-clock-cancel’ is not known to be defined.
⛔ Warning (comp): org-agenda.el:10258:11: Warning: the function ‘org-clock-out’ is not known to be defined.
⛔ Warning (comp): org-agenda.el:10229:8: Warning: the function ‘org-clock-in’ is not known to be defined.
⛔ Warning (comp): org-agenda.el:6242:23: Warning: the function ‘org-duration-from-minutes’ is not known to be defined.
⛔ Warning (comp): org-agenda.el:5684:61: Warning: the function ‘org-duration-to-minutes’ is not known to be defined.
⛔ Warning (comp): org-agenda.el:4564:30: Warning: the function ‘org-clock-get-clocktable’ is not known to be defined.
⛔ Warning (comp): org-agenda.el:2541:51: Warning: the function ‘org-mobile-push’ is not known to be defined.
⛔ Warning (comp): org-agenda.el:2540:51: Warning: the function ‘org-mobile-pull’ is not known to be defined.
⛔ Warning (comp): org-agenda.el:2538:47: Warning: the function ‘org-timer-stop’ is not known to be defined.
⛔ Warning (comp): org-agenda.el:2537:39: Warning: the function ‘org-timer-set-timer’ is not known to be defined.
⛔ Warning (comp): org-agenda.el:2512:50: Warning: the function ‘org-clock-goto’ is not known to be defined.
⛔ Warning (comp): org-agenda.el:2494:46: Warning: the function ‘org-attach’ is not known to be defined.
⛔ Warning (comp): org-id.el:736:16: Warning: the function ‘org-element-cache-reset’ is not known to be defined.
⛔ Warning (comp): org-id.el:577:33: Warning: the function ‘org-element-at-point’ is not known to be defined.
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