Xbox One How can I talk on PC?

[Luis Pina III]

I read that I can use the Gamebar, Xbox app for Win 10, and Xbox Console Companion. What I want to know is, whether starting a party or in a party, how I can talk using my PC headset using these.

At Taskbar icon > Sound my headset is default playback and recording device. In Settings > Privacy > Microphone each app is given access.