Unfortunately, no, it's not working. I use Rustdesk all the time. I've found a way, but it's really stupid. I have a GL.iNet Comet to manage my headless machine. That unit supports microphone passthrough. I send my mac's mic through that to ubuntu. It's an awful solution hah, but it works. I'm able to use dictation through that on Ubuntu. I didn't buy the comet specifically for mic use. I found out after the fact that it was able to do it.
reading some of the comments i was expecting something really high end and polished, but yeah, this is something you could with a headset 1/10th the cost
I was expecting an app that works like the VR version of a laser indoor measuring tool. Where you hold a piece of wooden board and the VR tells you where it should go and then another person wearing a VR helmet attaches it to a post, also at sub-mm precision. Etc.