One more thought: you might be getting confused here with the LPDDR3 limitation, which was a legit thing that existed until the timeframe you're thinking of.
Any laptop which used LPDDR3 (soldered) typically maxed out at 16GB, but as far as I'm aware, this was due to capacity limitations of the RAM chips, not anything to do with the CPUs. For example, the Lenovo X1 Carbon had a 16GB upper limit for a while due to this. I believe the 15" MacBook Pro had the same limitation until moving to DDR4. But this is entirely the result of a design decision on the part of the laptop manufacturer, not the CPU, and as I've shown there were plenty of laptops out there in the ~2014-2016 timeframe which supported 32GB or more.
DDR4 support was introduced with the 6th gen Core (except Core m) in 2016, LPDDR4 support didn't show up until (half of) the 10th gen lineup in 2019. It's just another aspect of their post-Skylake disaster, wherein they kept shipping the same stuff under new names for years on end before finally getting 10nm usable enough for some laptop processors, then a few years later getting it working well enough for desktop processors. In the meantime, they spent years not even trying to design a new memory PHY for the 14nm process that actually worked.
Yeah, this link is helpful, but IMHO doesn’t actually call out the specific problem I was referring to, which is that only laptops that used LPDDR3 had the 16GB limitation. If the laptop used regular DDR3, or DDR4, it could handle 32/64GB. The table lumps everything together per processor model/generation.
Any laptop which used LPDDR3 (soldered) typically maxed out at 16GB, but as far as I'm aware, this was due to capacity limitations of the RAM chips, not anything to do with the CPUs. For example, the Lenovo X1 Carbon had a 16GB upper limit for a while due to this. I believe the 15" MacBook Pro had the same limitation until moving to DDR4. But this is entirely the result of a design decision on the part of the laptop manufacturer, not the CPU, and as I've shown there were plenty of laptops out there in the ~2014-2016 timeframe which supported 32GB or more.