Geforce Now OS Switcher is a Chrome extension developed by Tiger Soldier that allows users to play Genshin Impact on Geforce Now using Linux or the Steam Deck. It utilizes the declarativeNetRequest API to set the Nv-Device-Os to WINDOWS, effectively bypassing the Geforce Now OS checks.

With this extension, Linux and Steam Deck users can now enjoy playing Genshin Impact on the popular cloud gaming platform, Geforce Now. By tricking the system into thinking that the device is running Windows, users can overcome the OS limitations and access the game seamlessly.

Geforce Now OS Switcher is a free extension available on the Chrome Web Store. It falls under the category of Browsers and is classified as an Add-on & Tools. The extension is a great solution for Linux and Steam Deck users who want to play Genshin Impact on Geforce Now without any compatibility issues.