FIFTY MILLION TYPE STYLES IN PAINTER AND NO WAY TO BROWSE THEM - YOU' D THINK AT LEAST THEY PUBLISH A PDF FOR BROWSING
Are you asking about brushes? Fonts?
If you're looking for brushes, check out the user guide (that's the 2021 one, but it's not hard to find the other ones). Somewhere, there was someone who posted their own example page of all of the standard brushes, but I can't locate that now...