...which is entirely reasonable. Laptops are heavily customized/optimized for power/heat, whereas off-the-shelf CPUs (like the 5800x) are very much general-purp

...which is entirely reasonable. Laptops are heavily customized/optimized for power/heat, whereas off-the-shelf CPUs (like the 5800x) are very much general-purpose devices but can absolutely be customized to be fit-for-purpose (and the entire hardware ecosystem is built around that).