As well as new developments being available in the nightly builds of a browser, features are often released in the official build of the browser but behind a feature flag. This allows a developer to opt into a feature so that they can experiment or prototype a solution based on a cutting-edge browser feature while protecting the general public from a feature that is still being worked on and has not been standardized yet.
You can enable and disable flags in the Chrome browser by visiting
chrome://flags/ (to visit the page, type
chrome://flags/ in your browser's address bar and hit Enter). This page provides a list of available experiments that the current version of the browser is running and gives you the option to enable or disable these experiments.
The following screenshot shows you what the
chrome://flags/ page looks like. You can search for features and set them to disabled, enabled, or default. As the warning suggests, these are experimental features...