For browser-based monitors (Full Page Checks and Transactions), when a browser type with extra metrics is selected, Uptrends will report Core Web Vitals for the page load (among other metrics).
For transactions, the Core Web Vitals were only available for the first transaction step, provided that the waterfall chart had been enabled for that step. However, as of this update, we will report a set of Core Web Vitals for every step that has a waterfall enabled.