In a broader sense: anything that is a required stepping stone for the person you want to be in 6 months.
I would simply ask yourself, Did I block distractions during that time, stay focused, and accomplish what I set to accomplish?
Perfect. You can count it as deep work for yourself. There’s really no wrong thing you can include; just things you may not feel are considered deep work in your own eyes. If that’s true, don’t cheat yourself and make time for deep work. Just make sure you give yourself credit where credit is due.
I personally classify deep work as any course studies, time spent reading non-fiction, visualization or meditation that can help my future business goals, or actual time spent building my business.
I hope that helps!
Hope that helps.