I grew up in the 70s, and spent most of my life listening to music as albums, but that time is pretty much passed. What percent of new music is even released as albums any more?
My impression is most music is still released as albums although I don't have numbers. I assume there are various reasons why it makes sense for a band to produce and release a batch of music at the same time (especially given that vinyl and CDs are still a thing, even if a much reduced thing).