[11] On 11 February 2020, the first single from the album, "Eugene", was released alongside an accompanying music video directed by hip-hop artist Loyle Carner.

[25] On the same day, Parks presented a preview of the album on a livestream hosted by Rough Trade and broadcast exclusively on the Dice official website.

[35] A month earlier, she performed the song "Black Dog" for BBC Radio 6 Music at the same theatre to celebrate what was named their State of Independents Day.

[38] In October 2020, Parks performed "Hurt" for a Channel 4 television special titled The Whole Truth in which she and other Black British musicians explored mental health.

[47] NME notably lauded the record with 5 out of 5 stars and described it as "a universal collection of stories that'll provide solace for listeners of all ages and backgrounds for decades to come.

[49] Before its release, Bella Taliesen of The Face described the album as "breathtaking", "dreamlike, jazzy and at times properly poppy" and noted that it would "take this bedroom star stratospheric.

"[58] Alexis Petridis of The Guardian described Collapsed in Sunbeams as "a diaristic, near-perfect debut" that "feels like a warm breeze in the depths of a miserable winter.

"[51] Writing for Clash, Tochi Imo described the record as "reflective, intuitive and introspective" and "an immensely gripping debut", while noting that despite featuring no guest appearances, Parks "holds her own across all 12 singles and sets the bar high for those who follow.

She continued to laud the record and wrote that "Parks' seemingly effortless lyricism and laidback melodies make her songs cosy in winter, and chilled in summer - always to be uplifting and comforting.

"[54] Johnny Sharp of Uncut wrote that Parks "punctuates beautifully languid, trip-hoppy vignettes with a voice redolent of Martina Topley-Bird and a neat line in spoken-word poetic musings.

"[60] In a review for Exclaim!, Kyle Kohner described Parks as "an extraordinary artist who's shown, through a small body of work, the talent to convey complex emotion with a sense of maturity beyond her 20 years of age, managing to express it all as if she's lived a lifetime or two.