In an interview with NME on 3 February 2023, PinkPantheress expressed her desire to make "a shift towards other styles of music" and revealed plans to potentially release her debut album later that year.

[8] Larisha Paul of Rolling Stone wrote that "if PinkPantheress often seems adrift in apprehension and loneliness, she inhabits the LP's different purgatorial states with the same confidence that made her early releases so appealing", remarking that she is "never quite distressed" and when she "hits a dead end, she just builds a new road forward from scratch".

[11] Tanatat Khuttapan of The Line of Best Fit stated that "a whiff of mortality and reincarnation accompanies the majority of Heaven Knows" and felt that the "more satisfactory outcome of collaboration is the album's charismatic sound design" provided by its producers.

[14] Reviewing the album for AllMusic, Paul Simpson described it as "a fully developed refinement of the brisk, intricately arranged pop style she's become known for, with lyrics about romantic infatuations set to pulse-quickening liquid drum'n'bass, U.K. garage, and filter-house rhythms".

[14] Colin Joyce of Pitchfork opined that PinkPantheress "transforms her jittery, emotional miniatures into pop songs that feel more extroverted, more joyful, and sometimes more complete" and also "flexes her abilities as a writer, producer, and curator of guest spots".