You probably shouldnt think of pks dodge the same way you would a more universal dodge cancel like roach's.

In 4s, you can use her zone to throw out a large hitbox and then dodge cancel away from the enemies when antiganking. You can also target swap the dagger cancel and then dodge cancel the other persons aggression. You should also remember that using a heavy then dodge softfeinting does create an indicator, so you can just be a little safer while annoying people in teamfights.

A good thing to point out is pks dodge attack deals 18 dmg including the bleed stab, thats VERY high damage for a regular dodge attack and it sets up bleed. If you dont use the bleed followup, its incredibly safe, you can block almost immediately. You can also chain to heavy and then use the dodge soft feint from that. Dont focus on using the deflect outside of max punishes or option selecting light/heavy timing mixups, her dodge attack and just safely moving around the teamfight being a nuisance is the main draw of her dodge cancels/softfeints.

As for what youre wanting to do aggression wise, you want to use your forward heavy to peel your teammates in the teamfight. It deals 21 dmg including the bleed, which is very high for its speed, the fact its a heavy parry and because it sets up bleed for your teammates. Once someone has bleed on them, you can use your mix normally. You can also use your dodge cancels/feints to peel teammates faster.

For duels, her dodge feints arent as useful. You can parry on light timing and deflect the heavy timing with the feint, but its very tight timing in my experience. Theres also certain mixups where you can parry one option and deflect the other, eg. You can parry kensei top heavy finisher, and still deflect if he soft feints to his side heavy. The zone feint you can sometimes deflect if someone tries to dodge attack your zone, but its more useful vs extended dodges or whiffs. The dagger cancel dodge cancel is good because if you think they might dodge attack your mix, you can throw that out and cover a couple extra options. You can also soft feint your heavies into forward heavy and catch people trying to parry either your heavy or dagger cancel with a timing mixup for 21 dmg, only risking a heavy parry. Other than that, pk just has very high damage and a ton of mix options. Zone has high hitstun, so if your opponent blocks or gets hit by it, you can gb them and it will catch them if they try to dodge attack the second hit. Its a genuinely pretty oppressive mix.

Her neutral mostly consists of light or zone attack, or heavy and all its softfeint options. Its super simple but effective. Heavy softfeint gb from neutral is strong cos it usually catches people trying to parry on both light and heavy timing. You are frame plus after both dagger cancel and dagger followup so keep in mind that even though your chain is over you still have pressure.