In your case am afraid it is survivor bias. We are not talking about individual cases here. If you want to go case by case basis I have never had ThinkPad last fewer than 10 years. In fact I never had ThinkPad die on me. But they do break just like any other machine. Many of Apple’s laptops had issues when you used them too hard because they would blow hot air on glued parts or parts sensitive to heat shortening their life span. I strongly recommend watching video I’ve linked.