Probably a bluetooth issue.
Screenshot translation (my system is in German): The upper part is the output devices, and I am able to select my bluetooth headsets. The bottom part is the input devices, and my headset is missing.
This is not a headset issue, since neither my Sony nor my Sennheiser headset is working.
This is probably a bluetooth issue since my cable-connected Jabra Evolve 2s are able to use the microphone.
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