That's what I thought. It's just a couple of people out enjoying themselves. Probably seen some bushcraft and prepper videos on youtube and decided to give it and go and they have built there own bug out place.
If it belonged to someone with experience then I would have thought it would have been well off the beaten track, so no one would come across the place. Not very good of them to leave saws on site.
Why that location and not somewhere less visible? Was there anything to suggest that you spooked the occupant(s)?
The college where I taught for many years had a densely forested perimeter. Substantial understory of shrubs beneath a pine canopy.
Collecting biology lab specimens over the years, I stumbled across 3 different "summer camps," low profile and practically invisible from 10' away.
Clearly organized for and by an individual, I was discouraged to imagine that those places were "home" to someone.
Breathe in, breathe out, move on.
#1 was an A-frame shaped low tent of clear plastic sheet on a cord. Several neatly folded blankets underneath. Cup & plate, bit of mirror hanging from twig.
#2 was a covered enclosure made of freight pallets (no shortage of those in the surrounding light industrial neighborhood.) A masterpiece of camo in a clump of cottonwood trees.
#3 was a low canopy under thick, spreading dwarf ornamental pine trees, right up against a wall of a college building. Learned later that a family lived there.
I didn't poke around, not my stuff. I had other things to do.