I think that in order to get a productive discussion, could be good to have some mark of reference. The article goes back to 2016 and many things have changed since then.
Can you tell us about your experiencia?
Do you feel some difference when playing different formats: WAV, FLAC, ALAC, indeed mp3? Have you tried different "apps" to play your files: JRiver, Audirvana, Roon, ....?
Do you feel any difference playing the same file with metadata and totally stripped from metadata?