>>50133626
if you already exported settings, open tampermonkey dashboard, and toggle the old 4chanX off
then click that link you have open there for 4chan-XT.user.js
a new tab window for userscript installation should open up, click Install (or Reinstall)
refresh a 4chan tab, then click the settings icon
if it says 4chan XT | 2.24.1 then it worked