The widget is lacking at the moment, but it's at least easy on the eyes with direct controls for brightness, colors, power plan, and live recording or streaming. A more fully-featured version of the widget is expected to come later in the year.
https://www.notebookcheck.net/Intel-launches-its-first-XBox-Game-Bar-widget-alongside-latest-Graphics-Command-Center-update.480286.0.html