Performed by the collective's members Bladee, Ecco2K, and Thaiboy Digital, the album includes a guest appearance by frequent collaborator Yung Lean.

Through collaborations with fellow Swedish rapper Yung Lean, the group began to gain recognition, and released the project GTBSG that same year.

[2][4] Dazed magazine considered it a sonic shift from the lo-fi of Drain Gang's earlier work, to a more polished, melodic sound.

[2] Its opening track, "1:1", contains a guest appearance from fellow Swedish rapper and frequent Drain Gang collaborator Yung Lean.

On Trash Island's fourth song, "Victim", Bladee repeats a minimalist hook, and Ecco2K delivers a verse about battling destructive urges.

[5] In a positive review, Steve Juon of RapReviews described Trash Island as "music designed for Instagram reels and TikTok videos."