HBO Max would only put the known H-B series on there, if it wasn't released on DVD as either part of the Golden or Classic Collection it wont likely be there.
Doesn't that Boomerang app thing have a lot of classic H-B and Cartoon Network series on it?
The 80th Anniversary does not included anything from The Bugs Bunny Show. It contains previous features such as commentaries and music only tracks.
Disc 3 has these new features.
Special Features
Bugs Bunny's 80th What's Up Doc-umentary!
10 Looney Tunes CartoonsEpisodes
Curse of the...