[nielsole]

I always understood reserve storage to be one of the main concerns. Your disk might have decommissioned some sectors / flash cells without wiping(or being able to) wipe it. The data you can pull if you bypass the drive controller e.g. by flashing custom firmware or desoldering flash chips is probably not zero.

[Tuna-Fish]

This is the big one. I doubt anyone has any actual ability to recover anything usable from such drives, but the principle works and therefore to the grinder it goes.

Modern flash devices are supposed to be able to prevent this, the protocol has allowances for it, but I think the risk of stray data remaining on such drives is actually much higher than on HDDs, because there are a lot more relocations in SSDs than on spinning rust, and because you absolutely cannot trust the typical drive firmware to implement any of the parts of the spec that are not required for booting windows, even on supposed "enterprise" drives.