Thanks for the reply.
Yes, this is the way I am currently doing it, redirect everything to some file. But this gives me no flexibility. Since the metashape workflow is just part of a bigger processing chain (of which I also want a couple of lines of comprehensive output), I cannot selectively decide which part of the metashape output I want, and which I don't. The workaround I have now is redirect everything to some temporary file, and log the parts I want from metashape (x/x cameras aligned, ortho written etc) manually. I was just hoping there would be a more elegant way to deal with the metashape console output.