Understandable. I ran APs for a solid decade in PF1 up to about level 14 tops (even if the AP went further).
Yeah, there's a reason I tend to mention prominently in my compliments to PF2e that it doesn't break at higher levels. And from best I can tell, that applies to running it, too (though, again, I have not run it myself but I can tell a fair bit by just looking at statblocks).
(It might still run into the issue with high level PC-class-equivalent characters of having too many things to keep track of, but maybe not since there may be little reason to record a lot of skill feats and the like).