I dumped the factory oil at 600 miles (est), I collected the oil in a clean plastic pan. After the oil change I poured the oil in a second container and swished it around as I got towards the bottom like I was panning for gold. That left some very fine metal material at the bottom, the bits were small, you could feel them between your fingers as they were gritty, shiny metal. They were not in suspension in the oil , but likely bits dropped straight to the bottom of the oil pan. I flushed the pan during the oil change to get as much stuff out as I could. It wasn't a lot in terms of quantity, just small gritty stuff. The best way to describe what I seen is what you can see in the picture in the link below. That's what my pan looked like after my panning for gold motion. I think this is somewhat normal, just want to be sure though. I took the oil filter apart and seen nothing in the oil filter, so the grit was just sitting in the bottom of the oil pan. Any opinions welcomed. See the picture in the link below if possible.
https://automototips.com/metal-in-oil-after-break-in/