Filmed and directed by NVMB3R Production, the video features Brymo exposing his buttocks while wearing a loincloth to hide his genitals.

[10] The video received mixed reviews; those in support of it described it as a moment of brilliance, while those in opposition see it as Brymo's attempt to draw attention to himself.

[12][13] In an email to Pulse Nigeria, Brymo defended his decision to expose his buttocks, saying, "I decided to appear how my forebears dressed before the arrival of civilization to Nubian continent.

[20] Oṣó opens with "No Be Me", a song that reminds listeners of their humanity and subjection to their environment; Brymo is heard singing over soothing strings and snares.

[6] The optimistic song "Patience and Goodluck" has been described as having a "comforting underlying message" exemplified by lyrics like "if you wait, you go soon find out say good time go come again".

[22] The Jùjú-inspired track "Olúmọ" combines the talking drum with a saxophone and folklore instrumentals; the song is a tribute to Nigerian playwright Wole Soyinka.

[6] Nigerian Entertainment Today's Sandra Ezekwesili granted the album a 4.5/5 rating, describing it as "an introspective journey through love and life and the myriad of relationships in between".

[22] A Pulse Nigeria contributor, who goes by Jonathan, awarded Oṣó 4.5/5 stars and praised Brymo for creating an environmental project that explores the human condition.

[26] The Native's Debola Abimbolu wrote that "Brymo stays true to folk music’s evergreen topics of wanderlust, love and search for nirvana—he tackles them with a graceful economy of language and fine gradients of emotions.

"[7] TooXclusive's Daniel Enisan rated the album 4.1 stars out of 5, praising Brymo's songwriting skills and describing Oṣó as a "masterpiece that will grow into a classic".

[23] Afro 100 Media stated that the album embodies profound lyricism, relative sound and instrumental music in tune with its overall message.

[27] In a review for the Daily Trust newspaper, Abdulkareem Aminu praised Brymo's overall growth and opined that Oṣó is the "best album released this year so far".