This is a small extension built to easily find out if a game that you are browsing on steam is compatible with GeForce Now. If it is, a small check-mark will be added to the title, where as otherwise a cross will be shown.
If Google decides to remove this from their Web-Store you can still use this.
Just download the repository as .zip file, head over to chrome://extensions/ and enable the developers mode.
Once enabled you will be able to upload your own packages, this is where you should upload the previously downloaded .zip file.
Once installed you can browse the steam library (https://store.steampowered.com/app/304430/INSIDE/) and see which games support GeForce Now.
Please, if you have any ideas how to improve this, go ahead and create an issue or even provide a PR. I will gladly merge it!