The type of toner itself is more important to the drum's life than anything else.
If you use a cheap third party toner, one not from the manufacturer, the micro-plastic bead size will most likely be wrong permanently damaging the drum. This is a special case with color laser/led printers where buying a third party toner will kill your drum after the first few prints go through the last of the good toner and all of a sudden you get streaks and spots over every print you make. Once this happens, you have no choice but to replace everything or live with garbage prints the rest of your life.
Also, bad gritty or dirty dusty paper also plays a role. So do envelopes. But only in cases where you use a sensitive color printer where consistent half-tones are a requirement. My method is use a a cheap 75$ BW laser for my junk printing and treat my expensive color laser/LED printer like a pampered child and never worry about print quality issues there.