The same applies to risk-adverse, high profit genres and/or producer heavy ones like pop country. Obviously zeitgeist and even conventions and music theory play a role.
Sir Mashalot had a few videos a while ago.
https://youtu.be/FY8SwIvxj8o
The Blues Traveler trolling with the song Hook using the melody from Pachelbel's Canon with lyrics explicitly calling this out wasn't noticed by almost anyone.
https://youtu.be/pdz5kCaCRFM
Obviously Pop heavily samples too, E.G. Tom Tom Club Genius of Love being used by Mariah Carey's Fantasy, but it goes beyond sampling.
The Rolling Stones pulling from artists like Fred McDowell and Led Zeppelin settled copyright suits on Lemon Song, Whole Lotta Love, Bring it on Home and Dazed and Confused etc...
The invention of the Fairlight Sampler may have lead to groups like the Pet Shop Boys sampling dozens of other works, but as the Stones and Led Zeppelin show it wasn't unique.
Well I guess the Pet Shop Boys were inspired by Grandmaster Flash, and if you listen to the original recording of West End Girls you can hear James Brown samples...not sure if that counts as "hip-hop" in that case or not.
https://youtu.be/PKB2bYYYTYw
As a bad guitar player, I can understand why even Rock and Roll pretty much grew out of artists copying R&B/Gospel artists like Sister Rosetta Tharpe, but inspiration vs copying is a fuzzy line.
But basically the tooling changed, not the methods which have complex and intertwined causes, motivations, and effects.