Oil filters get clogged by soot, dirt, sludge, oil degradation, etc. It the engine is running right, it is hard to fill GM just reported the "average" oil change with the monitor is 8500 miles. The OEM filter will easily cover that, and a better filter will surpass it easily.
The better your oil, the less it clogs. I just cut the original filter from my Grand Cherokee after 5000 miles (1000 + 4000) for the two changes (dealer didn't have filters yet). It was no way ready to be called clogged, full, or anything else.