Y'know what, I honestly haven't looked at what the PCIe lane layout is like on newer chipsets. Maybe it's gotten better since I last really paid attention like 5+ years ago. I remember in early-mid AM4 there was a lot of grumbling about how there's only 20 PCIe 3 lanes followed by early PCIe 4 platforms that would give only 16-20 lanes with another 8 or so PCI 3 lanes. I also didn't really pay much attention to AMD before AM4 given how far behind Intel they were. But I could be entirely out of date now that I think about it