Wanted to thank everyone for their help. Everything works fine now. I ended up reformatting. Everything is fine with the 3080 too. So far, it's a great GPU, and it's performing above expectations. The initial problems I was having with it seeing two GPUs were taken care of after using DDU again, actually. Most of the other issues fell into place after that was corrected, but I had changed and tweaked so many things, registry settings, services that I might as well reformat. Why didn't you back up? I did actually but didn't have a redundant backup like I usually do. I usually have a system restore backup followed by an actual Windows Restore disc, via DVD, but because I had just built this back at the end of March, the ONE time I did NOT make a DVD backup is when I needed it the most. My restore point didn't fail, it was overwritten because I didn't readjust the disk space usage, so that's on me. This year hasn't been so great, however, I think maybe a couple of people can relate

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So, all games, save my Battlefield games work great. I don't know if I mentioned this before or not, but I did find a fix for the BF games and that was simply to enable V-sync. I have an LG 1080p 144Hz monitor, so the 3080 can easily. I don't know if that will work with Battlefield 2042, but I think it will because of the specs, I believe I can turn everything up to 11 on the video/advanced settings and it will hopefully run smooth as butter.
I do remember having issues with my 2080 with Frostbite engine-based games, at least FPS, especially Battlefield. I don't know why, but for whatever reason, it worked itself out and I don't recall it was something I did to fix it. I believe it's a driver issue. It's just weird that even the 2080 had issues after I fixed the 3080's issues. I haven't tried it with the 2080 since the format. There is one other game that I can think of that had problems with the 2080 and 3080 and that was Metro: Exodus, but that too was corrected with enabling V-sync. Again, 90% of my games run perfectly now with the 3080.
Oh, and I emailed Gigabyte and asked about the condition in which I received my GPU, that is no tape on the box itself, but the yellow tape on the electrostatic bag. That said that is how they ship their GPUs. The GPU is new from what I can tell. It even smelled new, but odd issues combined with the weird shipping methods made me think otherwise.