You can now use Geforce Now on your Linux machine with this quick little trick.

Install User Agent Switcher Extension

Install the User Agent Switcher extension for any Chromium-based browser. I used this on Brave and it worked perfectly.

Install this Extension and launch options!

options.webp

Add Chrome OS User Agent

Add the User Agent String:

Mozilla/5.0 (X11; CrOS x86_64 13099.85.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.110 Safari/537.36

agentid.webp

Switch Agent and Launch