Oatmeal

So...rolling oats are GF but whole grain oats aren't? For reference, I have Bob's Red Mill quick rolling oats that's GF and was considering trying that for homemade oatmeal. I also have a box of Quaker Instant Oatmeal but the non-GF kind, from back before my diagnosis. Back of box just mentions whole grain oats. So I'm seeing not all oats are the same. Friend said all rolling oats are already GF but not all whole grain oats are. Huh? That doesn't sound accurate.