Do you mean the guix-install.sh script? If so then what about the https://guix.gnu.org/manual/devel/en/guix.html#index-uninstallation_002c-of-Guix ?
- bug#70215: Documentation about ... Shalok Shalom via Bug reports for GNU Guix
- bug#70215: Documentation a... Rostislav Svoboda
- bug#70215: Documentati... bokr
- bug#70215: Documen... Rostislav Svoboda
- bug#70215: Doc... Bengt Richter
- bug#70215... Simon Tournier