The AFK-Kicker Minecraft plugin for version 1.20 is designed to kick players who are inactive for a set amount of time specified in the config.yml file. If a player is AFK for a specified amount of time, the plugin will kick them with a custom message. This plugin is useful for server administrators who want to prevent players from idling for extended periods of time, which can cause unnecessary server load and prevent other players from joining. The plugin is easy to install and configure, and it can be customized to suit the needs of different servers. It is a simple and effective way to manage player activity on a Minecraft server.