I use modern Yarn (v2 or later) as opposed to "classic Yarn" (v1.x) in numerous projects. These projects include a .yarnrc.yml file that is used by modern Yarn.
I previously had a number of classic Yarn projects, and I have a ~/.yarnrc file in my home directory from this time. I version control my *rc files and would like to remove this file if it is no longer needed.
I want to know whether the ~/.yarnrc file, used by yarn v1.x, is still used by modern Yarn?
Additionally, it would be good to know whether there is any information in ~/.yarnrc that cannot (or shouldn't) be stored in a project-specific {PROJECT_ROOT}/.yarnrc file.