Version 8.0.7 is available upstream. Please consider updating! It seems that version 8.0.7 is available upstream, while the latest version in the Gentoo tree is 8.0.6. You think this warning is false? Read more about it here.
The KiCad symbol libraries are the individual .lib files, with the
corresponding .dcm files containing symbol metadata. These symbols are
best used in combination with the official footprint libs.