I know people who are into living in the woods - but nobody SERIOUS about taking off to do it right now.
There are still plenty of tribal people who live in the woods right now who still practice subsistence hunting and gathering (with a few nods to modernity, as is the case everywhere). In places like Borneo, New Guinea, Brazil/Ecuador/Venezuela/Peru/Colombia, Laos, and others. I imagine that if you were committed to finding such “tribal people” who hunt in the forest, it wouldn’t be too difficult to find them and connect with them, wouldn’t hurt to try anyways if you can’t find any suitable social group to live among in your own country.
Also in many other countries certain groups among the local people can be found living a good deal of their lives “out in the country” camping and living in tents/huts/etc, while hunting and sharing food, feasting with each other, sharing living space, etc.
There are many people who are doing it right now.