Use left and right arrow keys to seek audio. Is the sound muted on your computer, and when you hover over the speaker icon in the system tray, you see the message, "No Audio Device Is Installed"?

The Google Home Speaker's audio quality isn't on par with the Nest Audio, but you can improve it with other Cast speakers.

Device Manager allows you to show or hide various devices according to your requirements. On the other hand, it hides a few devices at times when that is not in use ...