The global volume automatically increasing to 20 is now fixed. If you are changing the Teams app volume you may still have an issue.
Thanks for your feedback. Please let us know if you are still having issues.
An error occurred while saving the commentTTA commented
No matter what I do, I can't lower the incoming volume! Even though I put the sound level to ZERO the incoming sound can wake up a dead man! Very uncomfortable! I am glad that Microsoft doesn't make cars. "This car always drives 120 mph when started"