Most hardware has an exponential (memoryless) failure distribution in practice. The bathtub curve is a myth.
Also consider mixing in "was dropped during shipping" or "was stored improperly".
Why would hardware failure raise exponential with linear scale? Doesn't make sense
That's what you get from a constant failure rate per unit of time.
It's saying that hardware fails in the same way that Carbon-14 dating works.
Most if not all hardware failure on my side is def not memoryless besides the one lightning damage thingy but thats not hardwares fault.