Thank you for your feedback! The team is hard at work on this highly requested feature. We will share an update as soon as one is available.
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 commentCraig commented
Teams somehow ignores the master volume. No matter what my master volume is set to, I get my ears destroyed when I join a meeting. Even once started, changing the master volume does nothing. I have to go to 'App volume and device preferences' and turn down the Teams App.
Win10Pro 20H2 19042.746 Experience Pack 120.2212.551.0
Microsoft Teams Version 1.3.00.34662 (64-bit)
The engineering team is continuing to work on adding support for multiple accounts on desktop clients. We will first launch support for 1 work/school account and 1 personal account so users can enjoy Teams for work and personal side-by-side. Windows and MacOS. Support for multiple work accounts is still being worked on and will come at a later date.
You can track status via the roadmap here: https://www.microsoft.com/microsoft-365/roadmap?searchterms=68845.