You also have Windows 10 performance modules, Xbox social and chat tabs, as well as Spotify controls.Below these, the Audio section allows you to control the sound mix of various sound devices and apps active on your setup.The Show all captures button opens up the folder where your captures are stored.The broadcast symbol lets you stream to a connected Mixer account.The mic symbol allows you to mute or enable your microphone while capturing.
Hit this to record the previous thirty seconds of footage from your DVR buffer (or longer, configurable via the settings menu). You can mouse over the individual controls to see what they do and see their hotkeys, but here's an overview from left to right.
Turning on the Game Bar should release your mouse cursor from the game.