You can watch a very quick video and simple.
Fastest to Upgrade Your PS5 SSD
I tested the PS5 with ssds that don't meet the speed 5,500MB/s and with them all the games I tried worked fine.
- Gigabyte Aorus NVMe Gen4 GP-ASM2NE6200TTTD 2TB
- Crucial P3 Plus Gen4 CT4000P3PSSD8 4TB
Currently using in my PS5 CT4000P3PSSD8 4TB ...
I also used ssds that meet the speed predicted by sony, for example:
- WD Black SN850X WDS200T2X0E 2TB
- Gigabyte Aorus NVMe Gen4 7300 SSD 2TB
My recommendation is to install an ssd in the ps5 for at least one simple reason, which is that the integrated ssd in the console lasts longer...