Yes, this is actually an ideal use case for Konnected + Home Assistant.
With one panel in the house and one in the garage, each panel can take advantage of our standalone alarm system feature (see announcement) which will make two “Alarm Systems” show up in HA that can be armed/disarmed independently.
All the individual sensors from both panels will also automatically be available in HA.
You can easily create an automation in HA that would arm both systems in tandem if you want.
Sounds like a fun project!