I think PS5 has a similar problem but it's for the $499 unit....
You are only going to have 852gbs of SSD space on the PS5 so you will still need to get an external soon
This Could Be the First PS5 Compatible SSD
Samsung has
announced its new uber-fast SSD hard drive, and it could be the first that Sony whitelists for use in the PlayStation 5. As expected, it’s not cheap: 250GB will cost you $89.99, 500GB will retail for $149.99, and 1TB will set you back $229.99. Compared to the $219.99 cost of the Xbox Series X’s expandable storage, this is agreeable considering it's significantly faster. Furthermore, the hope is that because it’s not a proprietary format, the costs will come down quicker.
The specifications, with read and write speeds of 7,000MB/s and 5,000MB/s, do roughly match the PS5, although the Japanese giant has said it’ll publish a whitelist of supported drives in the near future, so we wouldn’t recommend podding out for this until the manufacturer confirms its compatibility. In the meantime, you can learn more through the following link:
Which SSD Drives Will Be Compatible with PS5?
Storage space
www.pushsquare.com