5E has been a veritable love letter to the history of D&D and long-time fans.
I6 and Ravenloft
The Temple of Elemental Evil
Acererak and the Tomb of Horrors
White Plume Mountain, Against the Giants
The Sinister Secret of Saltmarsh, The Isle of Dread
Mordenkainen, Volo, Xanathar
Waterdeep, Underdark, Demon Lords
Undermountain, Halaster Blackcloak, Baldur's Gate
The list goes on and on.
Honestly, if you can't tell you're being catered to, then I don't know what to say. WotC has been chasing after you as desperately as a
teenage boy chases after the girl in an 80's romantic comedy.