I reckon until the recent ai-gobbles-everything-up phenomena, this was mainly an Apple problem. Even fairly budget PCs come with at least 1tb of storage. Considering much beyond 2tb NAND gets scary pricing wise, I'm not that surprised we don't see much beyond that.
Yes, but I don't think it was just Apple. The switch to charge trap based SSD storage set all pre-built consumer computers back a full decade in terms of storage size. We were only just getting back beyond 2010 levels when the megacorps started buying up all the flash fab capacity and now even most of the HDD plates are going to enterprise.