Additional meeting and call-related features and issues within Microsoft Teams for business
I updated my Intel Wireless Bluetooth driver via Intel Driver Support Assistant to 22.30.0.4 (22.01.2021)
It seems that Microsoft Windows Update Service was unable to find the current version of the driver and left me with a completely outdated version from 2020 (!). Good job, Microsoft.
The release notes of Intel Wireless Bluetooth driver 22.30.0.4 (22.01.2021) look very promising. It seems Intel addressed the Microsoft Teams issue and released a fix: Discontinuity of audio during a Teams call can occur on some devices.
See https://downloadmirror.intel.com/30251/eng/ReleaseNotes_BT_22.30.0.pdf and https://downloadcenter.intel.com/download/30251/Intel-Wireless-Bluetooth-for-Windows-10 for details.
This did not help me. I downloaded version 22.30.0.4 and installed. My headphones still disconnect after 15-ish minutes in a Teams call.
I updated the driver
Disconnected/unpaired my headphones
Restarted my PC
Re-paired my headphones
Maybe this could work for you.