Chia command line vs GUI - Newbie questions

Folks,

I have built a Ubuntu 20.04 system for Chia farming. I am able to plot and farm but I have some basic questions.

  1. For most long-running apps in Ubuntu, the heavy load is carried by a background service and GUI is there just to give a view into the background service status. However, for Chia app, when I try to quit from GUI, it says plotting as well as farming will be stopped. Is there no background service? Do I always have to keep the GUI app up?

  2. While the GUI is up, I opened a console window and tried to create a plot from command line. However, when I switch to the GUI view, I don’t see this plot in the view. Am I missing something?

  3. The GUI has a field for specifying the queue name for a plot. Is there an equivalent argument for command line?

  4. My configuration has 16-core CPU, 2 SSDs, and 4 HDDs. I was told that I must add 16 plotting processes. Each process must create 29 plots and use queue instead of processing in parallel. Does this sound right?

Thank you in advance for your help.

Regards,
Peter