I like a lot about the new rule set, but I'm not a fan of the +1 per level for everything, because it diminishes character-customization. The mechanic of +x per level was adopted in 4th edition D&D and was one of the reasons myself and others chose Pathfinder over 4th edition.
But if Paizo is going to stick with +1 per level for everything, please at least adopt one change that 4th edition did right on this point: have no prerequisites for the feat called Skill Training (the feat that lets you gain proficiency in a new skill). The 4th edition PHB (page 201) says Skill Training has no prerequisites, but the PF2 version of Skill Training (page 171) requires Intelligence of 12. That means you have to have at least Intelligence 12 to unlock the opportunity to become proficient in a new skill. But many skills are not related to Intelligence, and this rule feels like an unfair barrier to the option of customizing skill choices. I see no upside in constraining player choice like this. Plenty of people with perfectly average intelligence pick up new skills later in life. (The 5th ed feat "Skilled" lets you become proficient in 3 new skills when you choose it, with no prerequisites.)
Please remove prerequisites for the Skill Training feat.