I have issues with Voice Over Network not working on official servers (I haven't tried it on unofficial yet), I believe the VON vas re-enabled again on official servers as I can hear people talking.
I have checked my microphone with windows, discord and steam they all detect it just fine without issues. When I try to auto-detect voice activity in Arma 3 it opens and then instantly closes the auto detect window.
I have tried
Lowering quality to CD Quality 2 channels, 16 bit, 44100 Hz (According to one fix on discord-troubleshooing channel and another on reddit)
Restarting and updating computer multiple times (Including optional updates)
Plugging out and plugging in my microphone
Verifying game files
My system is running Windows 11 and my microphone is Trust USB Microphone.