Solo about half the time, not always by design, but always plan and prepare as if solo every trip.
We read about it here over and over where a hunt is planned then somebody bails for some reason and then a guy/gal is stuck wondering what to do. I don't wonder at all. I plan for solo from day 1 and am glad when a buddy (properly vetted in other hunting occasions and the non-disclosure agreement signed) is able to come along. If I have enough notice, I invite somebody to fill the spot.
I learned a long time ago that waiting on somebody else is not something I am adept at. I understand life gets in the way sometimes. I just got tired of getting mad about it and letting it impact my plans.
My buddy this year has been changing his plans all summer as far as takeoff. The original plan was 7am Friday at the trailhead and that is what I am sticking with. I'm old and slow and need a bit of extra time to hike the hill at my pace. Simple solution- he has a map of where I will be camped the first night. Hope he makes it. He knows I'll have the HAM radio on for 10 minutes on the odd hours to monitor if he needs to get ahold of me whenever he decides to show up and hump the hill up to camp.
Decades ago I went with a "friend" for a 7 day pronghorn hunt, he killed opening morning then told me he was done and going home that afternoon. Problem was we were using his camper (at his insistence). Rookie mistake on my part - cost me a 1/2 day and $100 at the Gibson's (pre- Walmart days) to get enough crap gear to stay the rest of the trip but was a cheap lesson in the long run. Luckily I had my own rig there. Whether camping, backcountry, or day hunt: always have a Plan B, plan on being self-contained and self reliant.