Ok, this is interesting. I have multiple audio out devices: headphones, realtek digital (disabled), monitor (disabled). Previously I had the monitor enabled (in the event i wanted to switch to let others hear something).
The issue with doom is that the "accessibility reader" that does speech to text for the chatbox (this now goes to headphones) and VOIP would go through the monitor speakers and I couldnt change that.
I disabled everything but headphones and now I just cant hear anyone over the ingame VOIP (accessibility reader works now though).

My question would be, how do I point doom VOIP to the right output so that I can have all what I want enabled?

My programming experience is simple lua scripts and I can find my way around windows registry, speak as technical as you like.
System is ryzen, windows 10, nvidia gpu.