What I see a lot of too is poor quality hardware causing crashes - eg poor quality power supplies, actually faulty memory, memory that is marginal at the speeds

What I see a lot of too is poor quality hardware causing crashes - eg poor quality power supplies, actually faulty memory, memory that is marginal at the speeds that it's sold at (eg fine at the standard JEDEC speeds, but fails at the XMP speeds), but also poor cooling - eg not enough airflow in the chassis paired with a modern GPU. I had a PC that was having inexplicable game crashes, but only in stressful games - swapping the power supply from an existing ~10 year old one (which was still rated as enough capacity for my hardware) to a brand new ATX 3.0 unit resolved it.