The 768 GB modules are specifically designed for cloud datacenters, but Samsung plans to include the 24 Gb DDR5 chips in 96 / 192 / 384 GB modules aimed at mainstream servers, as well as 24 GB and 48 GB modules for consumer PCs.
https://www.notebookcheck.net/Samsung-is-developing-24-Gb-DDR5-memory-chips-for-768-GB-RAM-modules.552767.0.html