You shouldn’t be comparing with DIMMs, those are a dead end at this point. CAMMs are replacing DIMMs and what future systems will use.

Intel likely designed Lunar lake before the LPCAMM2 standard was finalized and why it went on package. Now that LPCAMMs are a thing, it makes more sense to use those as they provide the same speed benefits while still allowing user replaceable RAM.

For laptops, it seems like a winner to me. Do you need to expand your laptop’s GPU memory? It was justified by lower power, and likely better transfer rates.