Hitting cmd-f intuitively brings up a find view which you can use to search regex across the terminal (scoped by tab). The biggest differences you will notice are:
Find is bottom-up. The search starts from the bottom of the terminal. The first match is the most recent one. In Warp, unlike most other apps, you will not be scrolled away to the very top of your days-old terminal every time you open the search bar.
Find explicitly shows you the index of the match you are focused on and the total number of matches found.