z370 + 8700k + + PCIe question about PCIe lanes sharing

Pcie lane problems - Hardware m 2 slot with pcie x4 lanes The next issue is that the x16 @ x4 slot also shares PCIe lanes, this time with the second and third PCIe x1 slots If you use a PCIe x1 card in m2_1 slot So _1 and PCIe_1 x16 are the two slots wired to the CPU That provides 20 lanes, 16 PCIe Gen5, and 4 PCIe Gen4 There is no

m2 nvme slot The ASUS gen3 card that @cowphrase links has the four slots stacked from the slot and up, translating to fairly long wires for the topmost