@Sani,
One thing to consider with a 0 session is that it does carry a considerable risk in slowing down PbP games. From my understanding and experience, it's not the frequency of posting as much as the fatigue that comes from getting bogged down in details. A simple discussion on these boards can take anywhere between a week and a month, as I'm sure you know.
To add, I imagine that - as the mature individuals we are- we can all put it on ourselves to make sure our characters can get along well enough to remain civil :). Unless someone was planning on playing an evil character or a lone wolf?
I do enjoy a touch of tension between characters to create good story, but unfortunately I know some people can take things personally. No, I'm not that player that makes a char just to stir things up :)
Would it help for everyone who's changing/rebuilding their character to simply state what their new focus is? I didn't know if party balance was a concern of the DM, and it's never been to me, but if needed I'm willing to try my other melee-centric character concept if needed.
But to reiterate, I'm a team player and willing to 0 sesh if the majority wants to. My CS is pretty much done.
Protip:
https://wanderersguide.app/
Great for pf2e chargen. Works best on chrome.