Yes this is just a build to start myself off. This is my first ever build. I am not a heavy gamer, just a hobbyist that only gets a couple hours a week in, if that, with my twin toddlers. This also doubles as a music production work station for my music. I chose it so in the future when I want to upgrade, I can with any part.Yes, it makes no sense, on this, or any other board, to use a lower slot when the primary slot is not populated.
Also, I'm interested in why you chose an X570 motherboard with a 2nd Gen Ryzen CPU. Do you have plans to change CPUs in the near future?