Computer data is never actually “deleted” until it’s overwritten with new 1s and 0s — operating systems simply cut off references to it.

That’s not entirely correct, and I would expect a tech news site to know but ig not.

It’s true with spinny’s since they store data magnetically on the platter with 1s and 0s, but SSDs store data on the NAND as a held charge. If there’s a charge in the block it’s a 1 if there’s no charge it’s a 0.

With spinny’s, when a file gets marked as “deleted” the residual magnetic 1s and 0s will remain on the platter until eventually overwritten like they say

But with SSDs, when a file gets marked “deleted” then within no more than a few minutes TRIM comes along and ensures the charge on the NAND is released (Which means that data is gone, permanently) for that data, there’s no residuals to worry about like with spinny’s and is in fact necessary to ensure decent lifespans.

This is dependent on the TRIM schedule. It could be size based (execute a TRIM when 50% of the blocks are used).

It could be or maybe the SSD has its own on-firmware TRIM schedule, but all major OS’s execute a TRIM on a time based schedule no longer than every 10-15 minutes.