Albums vs Recordings

What’re the differences between the Albums view and Recordings view? I’m sure this is covered somewhere, but the 1.8 release notes are vague on this point.

for instance, if I search for La Gioconda, then click on the composition–>discography, Albums/Recordings toggle between different views, but there’s little obvious difference between them.

further, filtering either on “Callas” omits the recent Warner hi-res remaster, even though its easy to find in either Qobuz or Tidal.