One more "me too" report as this started happening a month or so ago.
I use my personal phone to stream music so need to do a test call after every teams call to have Teams release the headset to let my phone resume music playback.
Headset: Jabra Evolve2 65 Stereo (dongle)
Version: Microsoft Teams Version 1.6.00.1381 (64-bit). It was last updated on 09/02/2023.