I think you’re looking in the wrong places for the info you want You got what are known as OEM drives. These are primarily sold in bulk to system integrators like Dell/HP/etc. they are noticeably cheaper, but do not have a long warranty. Typically they have 90 days, which is enough to cover infant mortality. After that, the OEM basically self-insures - they have to eat the cost of replacement, but that’s offset by the lower price.
What you’re probably looking for are Retail drives. These have multi-year coverage directly from the manufacturer.
Read the terms of sale carefully- sometimes the seller is the one offering the longer warranty, same as an OEM. Then consider if you trust them to honor that warranty, especially considering that it will be a direct expense to them.