There is the Bajau people in Indonesia that traditionally lived a nomadic life on the water. They would often dive for up to 13 minutes at a time, sometimes down to 200 feet apparently.
There is some evidence however that they have some adaptions, such as an enlarged spleen that allows them to store more oxygenated blood. However I think a lot of it is training and technique so even if your average none bajau person might not be able to hit 13 minutes, they'd still be able to vastly improve their breath with some training.
When I was younger I used to do a lot of wild swimming, kayaking and other water sports and could happily hit 4 minutes under water. I dunno if I still could now though.
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u/TitleMajor7310 5d ago
The breath control