Tab groups are designed to tag similar tabs together, helping to keep your Google Chrome browser more organized. The new feature comes with a few appearance tweaks that let you name, color-code, and group similar tabs together.
Create and Save Tab Groups in Chrome | Secret Hidden Feature
Currently, the Tab Group feature is only available in the beta version of Google Chrome for desktop. To use it, you'll need to download and install the beta app on your PC. The Chrome Beta app is Google's experimental platform where new (and sometimes buggy) features are released for public use.
Download: Google Chrome Beta for desktop
Please note: The Tab Groups feature is only available for the desktop version of Google Chrome Beta. It is not yet available for mobile versions.