I have carried a basic Life-Straw in my hunting pack since they first became available for retail in Australia more than ten years ago. Bought a 6-pack on ebay for ~$120 or thereabouts.
Used one in anger in 2020 on a long back-country hunt a few months after major surgery. I had over-estimated my recovery status and had gone through all my water by mid-afternoon a long way from camp! It was stinking hot. Bloody glad I had one with me that day.

Haven't yet mustered the courage to do a Life-Straw only Northern Territory hunt with no water in the pack, but keep thinking what a pleasure that would be! Like a day chasing sambar, where your 600ml water bottle is still half full at day's end!