Perhaps Windows is also a reason in this case.
I.e. the forced Windows 11 upgrades when Windows 10 went EOL in October 2025, which for a lot of users means that have to buy a new PC.
That just doesn't account for all that much, first because most people aren't replacing their PCs over that (look how long it took Windows 7 to drop below a double digit share of the installed base after it went EOL, and I bet Windows 10 will take even longer to get there) and second because the PC that most will buy to replace it doesn't have all that much RAM.
Looking at Best Buy's Black Friday PC/laptop deals (the kind of place average people would look at if they felt like they were "forced" to replace their PC) you see Chromebooks with 4 GB, and PCs with 8 GB and 16 GB. I didn't scroll far (their site sucks and is slow/overloaded) but I didn't see anything higher than 16 GB.
That 8 GB to 16 GB range is smartphone territory, and there are 3-4x as many smartphones shipped per year as PCs. Apple going from 8 GB to 12 GB in the iPhone (which ships nearly a quarter billion units per year - for context 262 million PCs shipped in 2024) probably has more impact on the DRAM market than Windows 11 forced upgrades lol