you aren’t going to make non-binary-sized chips

TLC flash actually has a total number of bits that's a multiple of 3, but it and QLC are so unreliable that there's a significant amount of extra bits used for error correction and such.

SSDs haven't been real binary sizes since the early days of SLC flash which didn't need more than basic ECC. (I have an old 16MB USB drive, which actually has a user-accessible capacity of 16,777,216 bytes. The NAND flash itself actually stores 17,301,504 bytes.)