First Microsoft Ads, now Google Ads: audiences based on interactions with your results and ads on Google and YouTube.
Meet: Google-engaged audiences
Google-engaged audiences help you to reach users who have previously interacted with your website on Google Search, YouTube, or other Google sites. It automatically generates lists of users who have visited your site from Google properties through clicks on either ads or search results.
Based on my tests, it doesn’t appear you can break out audience based on whether they clicked a paid vs. organic result.