Can Flex Seal fix roof leaks?

I've heard a lot about Flex Seal and its versatile uses, but I'm particularly interested in its potential to fix roof leaks. Can Flex Seal really be an effective solution for patching up leaky roofs? How durable is it in harsh weather conditions? And what's the best way to apply it to ensure a long-lasting fix? I'm looking for a cost-effective and easy-to-use solution to keep my roof in good condition, so any insights you can provide would be greatly appreciated.