In electronic music we've been pressing the same DAT to vinyl and CD since the 90s. Subsequently replaced by .wav. Tracks come out of the DAW pretty loud these days, it's characteristic of the genre.
It's crazy watching some of the producer YT videos now and they open up these projects with 105 tracks, multi-layered/multi-voice drums, etc.
Queen's music is a massive pile of overdubs, especially for vocals and guitar. The Beatles also, and they were heavily into looping (physically cutting audio tape and gluing it in a loop, then re-recording it). Vocal and guitar double-tracking has also been the norm since the 50s, at least.
80s pop was also generally full of synthesizer stacks, where MIDI from one keyboard was simultaneously triggering several synths to create layers.