I have Dynamic CSS Print Method set to External File and Cache dynamic CSS enabled. GP is still outputting a lot of styles on the page in <style id='generate-style-inline-css'> and
<style id=’generate-navigation-branding-inline-css’>`.
Based on the description of the options, I expected all that to be combined into a file.
Then, the child theme stylesheet should load after it. (In fact, the child theme stylesheet should be the last thing from GP to load just on principle, because the reason to use a child theme is for overrides.)