[ThatPlayer]

Looks like the Ryzen AI Max chips do have x16: https://www.amd.com/en/products/processors/laptop/ryzen/ai-3...

But you probably want M.2 slots over a single x16 slot.

[anticensor]

They could have added a 16 lane upstream, 32 lane downstream PLX switch to packet switch between those devices.

[throwaway48476]

PLX switches are too expensive for a consumer device. There's not enough competition in the PCIe switch market.