Do not add extra patches which change default behaviour; DO NOT USE THIS ON A GLOBAL SCALE as the severity of the meaning changes drastically

Packages describing “vanilla” as local USE flag

Package“vanilla” Flag Description
sys-apps/systemdDisable Gentoo-specific behavior and compatibility quirks
sys-firmware/intel-microcodeOnly install microcode updates from Intel's official microcode tarball

All packages providing a “vanilla” USE flag (20)