What I heard on the ground floor from various system integrators, components manufacturers, and other companies, is memory supply has been tied up for all of 2026, and that shortages could last as long as until 2031.
Sure it’s scuttlebutt but wouldn’t surprise me as being true.
If there was really any demand more DRAM would be being produced.
The reality is most datacentre companies have warehouses full of DRAM and GPUs waiting for datacentres to be built. By the time they will be built, the GPUs they have stashed will be obsolete.
PC sales - and PCs use a lot more DRAM than phones - are falling off a cliff.
So there is no real future demand, that’s why no ones building chip fabs.