After this disaster: https://en.wikipedia.org/wiki/S%C3%A9ralini_affair I'm very skeptical about claims of glyphosate being "cancer-causing" (whatever that means when no measure of effect size is mentioned), even in animals.
The point being it is the only study that seemed to point to a link to cancer. But it was hugely flawed and was retracted. Given the hysteria over roundup you would think there were a bunch of such studies.