Audacity on Cloud Computer #2

I am using VNC via ssh to Cloud Computer, and when I use it in full screen mode, it runs so smoothly and comfortably that it is indistinguishable from my home PC. There is one important problem: most VNC do not support sound. I have yet to find a free one that supports Linux, which is the target of this project (lol). In other words, ordinary Cloud Computer cannot, in principle, use sound. On the other hand, AWS Workspaces is an original application that is not VNC, so it is indeed possible to use sound as a standard feature. I have always thought that I can watch video services such as Youtube and Netflix on my FireTV, so this is not a big problem, but I would like to try VNC with sound one day if I can find one. I was wondering what would happen if I tried to use Audacity on a Cloud Computer with no sound.
When I tried it on AWS Workspaces, I was able to record easily and the sound quality was much better than on my home computer, which was a bonus. As with AWS Workspaces, I started up Pavucontrol, which is a good companion to Audacity, but it did not actually produce sound. The Output Devices showed only Dummy Output, and since there were no other options, I was able to record as is. It is a little inconvenient that I cannot operate the PC while checking the audio output on the home PC side, but the sound quality is very good and the result is better than I expected, just like with AWS Workspaces. It exceeded my expectations (IoI).