Recently I saw this RTX 4060 Ti by ASUS with an m.2 slot, it's a sound idea, why waste 8 lanes (by putting 8 lanes GPU in 16 lanes slot). But I'm wondering about homemade solution, I found one of those passthroughs, it should work theoretically, adding 2 additional m.2 slots to the system, obviously it won't work in most PC cases without a pcie riser. Anyone tried that? any success? in my case (pun not intended?) my motherboard only supports 8x8x bifurcation so i could use only one m.2 device but on motherboards supporting 8x4x4x bifurcation both m.2 slots could be usable

EDIT: just got a bios update that says "Support graphics card with M.2 storage" and it gave me 8x4x4x bifurcation option, lol