Liner "notes" can be good for many things. Even back in the CD era, artists typically included photos, graphic art, lyrics, credits of all who played, acknowledgments of everyone who helped out, trivia about the studio and their instruments, and sometimes historical information or stories about how things happened.
It's totally feasible to make "liner notes" happen even now in the digital age. The thing is, the average person "consumes" music much differently than in the past. A lot of people just hear new music on their favorite streaming service and have no idea who sings the song or what the title of the music is, much less who produced it, where the music was recorded and so on. We live in an age where it's too easy to treat music as disposable content. Many artists may just put all the relevant information on their social feeds, so if you get interested in their sounds, you "follow" them to become part of the "tribe." And so it goes.