I have never bought Seagate, only WD/Toshiba/Fujitsu/IBM (and earlier server versions of Samsung). Once I got one (SMR) as part of a laptop with NAND cache, it has been working for 7 years, although its performance during large copy operations is terrible, despite the 8GB NAND buffer.
Most of my drives are from WD. The only problem was with 1.5TB drives. They crumbled even in the complete absence of any vibration and even with an ideal (after a full scan) surface immediately after purchase - about 1.5-2 years. And they were in 2 different heavy cases with good cooling with good power supplies.
But the latest WD purchases have shown that their reliability has seriously dropped even with the same capacity as very old ones - 2TB. With a much weaker load than before, because now the system drives are only SSDs. And the prices in $ have not fallen at all in 15 years. At the same time, back in 2010, WD Green came with a 5-year warranty. I have such disks for 2 TB. I switched to Toshiba server disks without helium for 8 TB with a 5-year warranty and a read/write resource of 550 TB per year. Although they are quite noisy. But for backup, this is not important. Most of the time, all my HDDs are turned off to avoid the risk of random vibrations near the cases and impacts (especially dangerous with modern high platter density and low head suspension, if there are children or large animals in the house), including those that are in system units thanks to 5.25" drive power selectors. When needed, I turn them on and then immediately turn them off.
I also began to suspect, judging by the mass failures in some series according to reviews in a number of large retail chains, that some SSD batches of disks are clearly either repackaged like new (already used and worn out with reset SMART parameters) or for different countries there are batches with different grades of NAND chips. For third world countries, either repackaged restored / worn out or lower grade. For the USA and Western Europe - the highest grade, only new chips.
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Unlike SSD, where real wear is extremely difficult to check (long time frames of the test for the rate of charge loss in cells), in HDD wear is most often easily checked by a full surface scan - if there were already head hits on the protective layer and there were chips, all this will quickly be visible in slow sectors, whole blocks. A disk that has worked for tens of thousands of hours cannot look new a priori, unless this is a factory repackaging of the can - there will be noticeable traces and irreparable dust almost everywhere and it will be visible by the quality of the plate surface after the scan. And "restoration" at the Seagate plant without replacing the plates and possibly heads - does not cancel the fact of wear of the servo drive / heads and plates, which have a finite resource, including the protective layer. So such a disk is quite easy to distinguish in an individual case, but not when you buy a large batch - but these are the problems of the company's purchasers and their risks.