How to remove a globally installed Composer package.
When I was updating to Composer 2, one of my global packages wasn’t compliant with the Composer 2 plugin installer. It also happened to be a plugin that enabled a feature that Composer 2 now satisfied (concurrent package downloads), so it was safe to remove it.
composer global remove [the/package-name-here]
(Replace the square brackets and what’s inside with the package name you want to remove.)