This guy found some stems I guess and made some absolutely ecstatic extended remixes of many popular singles by the Weeknd.
His rendition (https://www.youtube.com/watch?v=SIBX9dwH8sw) of Blinding Lights is intense. His YouTube channel can be browsed here (https://www.youtube.com/@QualityMotionMusic). If you want high quality MP3s of his tracks, they're behind a $1.44/month paywall on Boosty (https://boosty.to/quality_motion_music), apparently. Get 'em while they're hot!