There is no problem with this in the short term, I just thought it is a behavior that doesn’t seem right, although my inexperience with JACK makes me take certain precautions with what is right and what is not right.
I know I can route audio to other JACK add-ons, I have tried Guitarix, Ardour, Reaper DAW, Carla, and Calf Studio Gear, so there are enough tools to analyze and modify audio in different ways.
The point is that it doesn’t work for me and it may be a mistake in my configuration.
I will keep investigating, although, for my current project I don’t need JACK Audio, I thought it was a good idea to test its functionality.
Thanks for answering.