There's a lot of theorizing that early sapiens intentionally set fires to clear thick, impassable forests and kill game in the process. The cleared areas would make post-fire hunting easier as well.
Trad burning in Australia has largely been to cool burn undergrowth in the forest areas (relatively small land area) and to patch burn open grass lands (majority of area)
https://en.wikipedia.org/wiki/Fire-stick_farming
https://en.wikipedia.org/wiki/Cold_fire_(Noongar_fire_type)