I saw this online today too. I have always wondered about micro-chipping. I always said I would never do it - makes me think we are getting to close to doing it to humans & The Mark of The Beast.
But when I adopted my dogs, the previous owner had already micro-chipped them & then I come on YT & so many tell stories of the chip helping them find their dogs.
I don't know

- but I'm not surprised by the link between cancer & the chip because I think its kind of hard to put a foreign object into a body that God designed without there being some type of problem. I know there are manmade objects in bodies helping people continue living - but I believe most of those are routinely monitored. Who moniters pet chips?
I know I would never put a chip in me.