Microsoft is integrating Spotify into this feature, allowing you to control song playback during the game. There is also an audio widget for adjusting the game's volume output, and a widget for monitoring CPU, GPU, and RAM usage. Can passWindows10 using Windows + G to activateXboxGame bar.
The new Xbox Game Bar is currently being tested for PC gamers, and Microsoft is seeking feedback before it is more widely promoted. If you want to test a new game bar, you can enable it by launching "Xbox Insider Hub" on your Windows 10 PC and selecting Windows Gaming from the content options.
Microsoft seems to have finally solved some of the shortcomings of PC games, and we look forward to seeing more progress on the E3 this year.