What does the plugin do?
Floodgate allows Bedrock players to connect to Java servers running GeyserMC, without a Java Edition account.
Once you've installed the plugin, you will have to modify your GeyserMC config. in
/plugins/Geyser-Spigot/config.yml (Plugin folder may be different) set
After that, restart your server; Bedrock players should now be able to connect to your Java server, without a Java Edition account.