The album contains guest appearances from Miguel, Amtrac, Leon Bridges, Ry X, Elderbrook, Andhim, Paul Woolford, Kareen Lomax, Melé, Busta Rhymes, Lil Yachty, Sidepiece, Damian Lazarus, Jungle, TSHA, Aluna, Durante, WhoMadeWho, Seth Troxler, and Desire.

[3][4] Diplo kicks off with the opening track, "Don't Forget My Love", a collaboration with Miguel, which contains a pop-tinged sound over an electronic drumbeat and "tropical, plucky guitar washes over pulsating drum fills for a sun-on-skin, feel-good feeling" with "strong vocal hooks and piano-driven rhythms that build up without getting over-dramatic".

[3] "Humble", a collaboration with Lil Yachty, is a deep house song that contains "slippery autotuned rap vocals" from the rapper and contains "thumping bass that much better suits Diplo's dancefloor-focused vision".

[3] "Don't Be Afraid", a collaboration with Damian Lazarus, contains falsetto from featured artist band Jungle, along with a funk guitar and "punk-funk bass and Italo-disco synths" to "the glimmering" song, which was compared to Tame Impala's production style in double speed rather than that of Diplo and other dance record producers.

Although "Forget About Me", a collaboration with English singer-songwriter Aluna and unknown musician Durante, was released as a single on January 14, 2022, it was not directly included on the album, but the "Nite Version" of the song appears on it.

Writing for Clash, Gem Stokes felt that "compelling vocal features are clearly a cornerstone of Diplo's work" and "each vocal phrase is measured and deliberate... whether Busta Rhymes, Seth Troxler, Leon Bridges, or Jungle, each featured artist brings a new sense of fluidity and bolsters the stratified drums and smooth production", adding that "with 'Diplo,' listeners can raise their hands to the sky and sink into undulating house, dancing safely under the watchful production of a ten-time Grammy nominee".

[5] Megan Buerger of Pitchfork opined that Diplo "should have been a slam dunk—glossy, commercial variations on the Chicago sound are dominating mainstream dance music, and Diplo is one of the few surviving EDM overlords who still has a full calendar of DJ gigs", but conversely stated that it "is surprisingly low on innovation, adventure, and emotion" and "it feels less like a triumphal homecoming and more like another tourist trap", adding that "it's too bad the rest of the LP doesn't concern itself more with the unspoken intimacy of the club experience, or with house music as a vehicle for human connection" and "rather than nourish that friction and vulnerability, these songs feel passionless and removed—full of sparkle but missing anything like a soul".