This seems very useful; a universal solution at the OS level makes it easier to firm the habit of using PTT rather than relying on each individual app to offer (and then need to configure) PTT.

On a related note, I started using Nvidia's RTX Voice a few weeks back; I've never found anything better to remove background noise (and the noise of my mechanical keyboard). That includes some very expensive hardware solutions. It's incredible.

https://www.nvidia.com/en-us/geforce/guides/nvidia-rtx-voice...