That's essentially how things are likely to go with CXL, though the latency isn't likely to be quite as good as on a dedicated DIMM connection or even as "good"

That's essentially how things are likely to go with CXL, though the latency isn't likely to be quite as good as on a dedicated DIMM connection or even as "good" as it was with IBM's OMI. The future (imminent in enterprise and sometime around when PCIe 6.0 hits consumer machines) looks to be mostly a combination of HBM and CXL memory.