How to fix Apex Legends' Game Chat not working?
Solved: Apex Legends text chat not working
Xbox game chat bug post update 3/29/2022
The set-up process was seamless and ApexChat was accommodating to our specific needs and ongoing adjustments.
Same exact thing is happening on my Xbox Series X version of Apex weird because party chat works just fine.
If the voice chat is coming through that particular channel it could be the reason why the volume is too quiet.
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The second thing you need to do is update your audio drivers.