I’ve uniformed them ONLY because I had a box of nosler brass where the primers were not seating at least flush with the head. So now if I can remove material, I just do it. I don’t think clean pockets do anything other than a feel good measure
I deprime, ultrasonic clean, anneal, size, then vibratory in corn cob for 30ish minutes to get lube off, trim, prime, charge , and seat. The ultrasonic + vibratory clean the pockets pretty good but occasionally some pockets have some tough carbon in them, I just leave it. Never been a problem.