Starting with Google Chrome 77, you can enable the Global Media Controls experimental flag that adds a Play button to the toolbar of Google Chrome.
Clicking on this Play button will open the Global Media Controls UI pop-up flyout that lists all your current media sessions along with Previous Play/Pause, and Next controls for each media session.
This tutorial will show you how to enable or disable the Global Media Controls feature in Google Chrome for your account in Windows 7, Windows 8, or Windows 10.