Pathfinder 2 Playtest 2nd Edition: If it ain't broke, still fix it.

[Rhedyn]

I wouldn't say NONE. I'll stand by the new Action system being a stark improvement over PF1e, and would love to see a better game adopt it.

One has. PF1e has the unchained action economy. It's not even new in PF2e, it's just done worse now weird "manipulate" traits on actions.