If there are 2 memory slots and slots for SSDs (at least 2 x M.2 2280, and it is necessary to support Double-Sided SSD, otherwise the choice is reduced by 10 times on market) and the level of markup on memory/ssd from manufacturers, which literally reaches 4 times or more, it is more profitable for the buyer to take laptops with a minimum amount of RAM and SSD, if this sharply reduces the purchase price and when it is much more profitable to buy these components yourself at many times cheaper with a 5-10 year warranty (as opposed to 1-3 years as part of a laptop) and install for 5 minutes on your own.
Soldered memory makes sense only in one case - the maximum frequencies of the chips are at least lpddr5 7500+. In all other cases, the laptop must have 2 slots or the soldered memory must be at least 32GB, and preferably 64GB for models more expensive than $1300.
We were recently impressed by the many improvements made to the Spectre x360 16. HP has done exactly the opposite with the EliteBook of all things. Other than changing the processor, the company evidently hasn't done anything to address the existing issues of the predecessor – and it's their Elite series to boot!