Aye but with my samsung SSD it's up to me how much overprovisioning there is and I can choose to disable it like
I have a Samsung SSD. How do I know how much to overprovision? 100Mb? 200Mb? 1000Mb?? How would I know?
When they sell an SSD as, say, 2Tb but then I'm expected to assign 20Gb of that just for reliability, that's materially worse than a drive that advertises 2Tb but doesn't count the overprovisioning. But they're both advertised as 2Tb.
If they're selling a 2Tb drive, it should work as a (reliable) 2Tb drive.
Just like hard drives that manage bad blocks themselves.