AntiAfkKick
Prevents the inactivity auto-kick.
Listed in Hierophant’s installed-plugin screenshots. Check current publisher instructions and patch compatibility before installing.
NightmareXIV
Add this URL to Dalamud’s custom plugin repositories, then find AntiAfkKick in the plugin installer.
https://raw.githubusercontent.com/NightmareXIV/MyDalamudPlugins/main/pluginmaster.json