That's a whole other conversation just by itself. There are other factors that may even further reduce an engines life.

Such as?

Particular driving styles. For example, if you have a boxer engine with a turbo and floor it for the duration of a long banked turn, centrifugal force can prevent the oil from circulating through the engine and it can get damaged.

There are gotcha's like this which complicate the equation.

Boxers have oil starvation problems.

I have had two friends kill BRZ engines on track simply by putting slicks on the car...

operating hours below normal operating temp. That's why cop cars, taxis, industrial engines and other stuff that doesn't get turned off very often frequently lasts well beyond 200k (or the equivalent number of operating hours) wheras something used for a 5min drive to work and back every day will be worn out in much less time.

This is assuming all other variables are consistent. Changing your oil every 10k vs 5k certainly won't help things.

Thanks.