No suppressor is going to reduce wear and tear on the gun.
Most/all are going to add some in the form of additional backpressure.
When a can is advertised as "reduced backpressure", that is relative to older designs. It is still adding some amount of backpressure vs no can at all.
Kind of like a diet coke is reduced calorie compared to a regular coke, but either one is still more calories than not drinking one at all.