That doesn't work on any* NAND flash device, be it a flash drive, NVME, SATA, whatever.

The block device you see is an abstraction provided by the SSD controller. In reality, the flash capacity is larger. Pages are swapped out for wear leveling. If a block goes bad, it'll be taken out of commission, and your data may hide in there.

All of this happens on the SSD controller. The kernel doesn't know. You have no way to directly erase or modify specific blocks.

*Okay, there are raw NAND flash chips without controllers, but that is not you're working with when you have a SSD or flash drive. If you do have a raw flash chip, you can more directly control flash contents.