The original version featuring Dua Lipa and Young Thug is available for streaming on major platforms: Spotify YouTube Music Apple Music
The confusion likely stems from popular fan-made found on platforms like YouTube, where vocals from Camila Cabello's songs (such as "Liar" or "Havana") are layered over the "Potion" instrumental. The Real Story Behind "Potion" Dua Lipa Potion (feat Camila Cabello) mp3
While Camila Cabello is not on the track, the official credits include Jessie Reyez as a songwriter. Where to Listen to the Official Version The original version featuring Dua Lipa and Young
You can watch the official psychedelic music video for the real collaboration here: Potion - Song - JioSaavn Dua Lipa Potion (feat Camila Cabello) mp3
It is described as a "laidback dance, disco, EDM, and pop song" with a 1970s-inspired tone.