In April 2022, Greer released Barbarism, a full length album which she wrote, performed, produced and mixed herself, noting that "Recording, for me, is like an instrument, and definitely the one I’m most proficient in".

[7] One reviewer summarizes the album as "caught between reality and nightmare, balancing dissonant soundscapes against an eerie, self-possessed sense of calm" and concludes "Falling into her [Greer's] world, it’s hard not to be possessed in return".

[8] Another reviewer describes it as "a wonderfully singular vision full of conviction, vulnerability, fear, fascination, and rage.

"[9] Rolling Stone writes "It’s trippy, radical, weirdly life-affirming music, like nothing else Greer has ever made.

"[10] Discussing the many sources of inspiration for the album Greer mentions not only musicians such as Erykah Badu and Karuna Khyal but also artists such as Alex Prager, Hito Steyerl and Julian Rosenfeldt.

[11][12] As an artist, she has "cultivated a reputation as a dynamic performer and an astute conveyor of both abstract and didactic cultural critiques".