[1] According to Whibley, "Landmines" was specifically conceived after he sold the band's catalog, citing the "pressure and the need to create something".

[4] Bassist Jason McCaslin recalled the song being the first he received from Whibley from Heaven :x: Hell, saying that it convinced him that a pop-punk sound was viable.

[8] On February 8, 2024, Sum 41 performed "Landmines" on Jimmy Kimmel Live!, surrounded by visuals of flames and tombstones.

[7] Whibley described the song as being one of the slowest on Heaven :x: Hell, but noted how the album was already "fast and aggressive" as a whole.

[14] "Landmines" received generally positive reviews from music critics, with Rishi Shah of NME calling it Sum 41's "finest work since the noughties".

[16] Both James Wilson-Taylor of Rock Sound and a review for Sputnikmusic praised the song's catchiness,[17][18] while Mischa Pearlman of Kerrang!