“Your account is unable to communicate in voice channels based on a setting from your console or console account” Xbox series S
I have changed settings within Xbox and did a fresh install of the game, it worked for one session and then when i came back later to play it resorted back to this
Since it’s a console setting, you’d want to work with Microsoft on this issue, especially if your settings aren’t saving/reverting for some reason. Might be an account issue.
While that may be true, Blizzard isn’t at the point where they can offer support regarding Microsoft account settings, not sure if they ever will be at that point.