Alternately, if you want to go on the same journey Keary (the person you mention) went on to form an opinion on what constitutes good vs. bad UX design in music/notation/DAW software, they've also put out a whole series of videos taking the piss out of the UX of most of the software in the field:

- Reason (https://www.youtube.com/watch?v=7PFRyONURSo)

- Sibelius (https://www.youtube.com/watch?v=dKx1wnXClcI)

- MuseScore (https://www.youtube.com/watch?v=4hZxo96x48A)

- Dorico (https://www.youtube.com/watch?v=S-3wEC6Fj_8)