WAV has always had the ability to have metadata it just wasn’t well supported as an official standard. This changed over time.
Qobuz downloads now embed the cover art and metadata into each track for WAV or FLAC. You can strip all metadata from an entire folder of music files using dbpoweramp tag editor. Just highlight all files and open (right click …) in tag editor, then delete all rows of metadata and cover art. You don’t have to do it for each track.
It would be interesting to see if the resulting cd burnt with ‘clean’ WAV files sound any different from one using the tagged WAV files.