It's been up a little while I think, but it's been a busy month for me....anyway, download it from Paizo here.
The guide's pretty straight-forward, and as anyone who's been running PF2E knows this information will prove rather useful; I have been extrapolating from creature stats and leveling process to scale NPCs as needed, but a more detailed process is much desired and this document, which appears to be the whole of Chapter 2 from the forthcoming Gamemaster Guide, is most welcome.
I'm hoping they will try to assemble the data into some quick-access charts similar to how they did it in the Alien Archive for Starfinder, but even if that doesn't happen this will absolutely work. For those who have not seen it, Starfinder is a bit of a hybrid of PF1E and 2E in approach, with closer etymology to 1st edition while experimenting with the nascent ideas that blossomed in to 2nd edition. It is distinct, however, in providing a very solid set of easy rules for letting GMs quickly design enemies as needed, even on the fly, with level-appropriate core stats.
Either way.....gone are the old days of monster stat block design of equal complexity to PC design, a change I definitely welcome. Despite this reduction in complexity the stat blocks still provide all the actual content you need as GM, and serve primarily to reduce the noise level of older 1st edition stat blocks while still providing all the stuff you want and need. This is, to contrast a prior failed attempt at a similar reductionist style (D&D 4E) a very good way to go about doing it without losing the "resolution" a GM needs for a role playing game. About the only negative I have to offer is that the stat block sometimes frustrating mention a rule from another location, so stat blocks are not always self contained, something I thought we'd all agreed a while ago was a good thing. Despite this, D&D 5E and Pathfinder 2E both still seem to learn that lesson.....although both are still much better on average than they used to be, so there is that.