Does Ketamine really allow for the modification of the MobileGestalt?

I came across a post stating that, thanks to the "MobileHouseArrest" exploit, editing MobileGestalt is possible on iOS 18, iOS 26, and iOS 27 beta 4—thereby supporting versions not covered by BookRestore (18.7.5+ and 26.1+). Is this exploit genuine and functional? Does Ketamine really allow for MobileGestalt modification, similar to Nugget?

Link of post : https://www.reddit.com/r/jailbreak/comments/1vlckve/free_release_ketamine_ondevice_mobilegestalt/

GitHub Ketamine : https://github.com/Nouvborne/Ketamine

GitHub MobileHouseArrest : https://github.com/0xjohnnydev/MobileHouseArrest-PoC

Thank you in advance for your answers.