you can with 4 version of the plugin
check my latest you tube video series RPG MAKER MZ Online, i already shown this plugin work for pc, android and web version all.
and if you use my ready to use website that need MYsql connection plugin without it you can not connect to databse for online game or website
https://www.youtube.com/playlist?list=PLSpljKp0EuPloKd40UnG6eJ6h0AfUGR2G