Lenovo offers a "keep your drive" warranty option. I thought this upgrade option was needed to keep the drive when something (drive or other) fails, but maybe it is only relevant in case a drive fails and is replaced under warranty?
I know when we were RMAing drives as a company there was an $8 option to not return the drive. As it was free shipping to return it we’d just send it back - no sensitive data.
If you really need to be secure you encrypt AND shred. But you have to encrypt before it fails of course.