nope, i mean that's just useless. (it does kinda do the job, but wears it down, and not as effective since SSDs aren't really predictable because of wear leveling stuff and lie to the OS) there's an ATA Secure Erase feature that can be used instead.

some relevant link https://grok.lsu.edu/article.aspx?articleid=16716

nope its just how the file system works, same on hdd. in fact recovery programs like testdisk/recuva usually work better on hdds because ssds have trim and garbage collection running periodically