This sounds like you are not going to use the elements of either the interface to the sound card (DAW software) or you won’t use the Katana models. Make sure you intentionally are doing that. If not, ask some more questions and make sure you understand the signal chain and what parts of it do which task.
How did you see this connecting up and for what set of uses? You did mention recording, but the Katana doesn’t sound like the right thing for just that.
if you have questions about any of my stuff, ask. see this: Really need amp for beginner - #9 by sequences