Dell and Lenovo may limit mid-range laptops to 8GB DDR5 RAM in response to rising memory prices
(www.notebookcheck.net)
I am not a developer, so this is just speculation, but I think the current development community (outside of individuals with a personal interest in the topic) is largely incapable of developing efficient, well-optimized applications. Not that they don't have the capability, but the broader industry ecosystem (on the consumer side) doesn't exist in terms of efficient application development.