Do people on online dating websites really look you up on social catfish or beenverified to find out into about you and your past?

Or is that all assumptions? Do people go that far to find about someone’s past to see if they want to continue to get to know them? Like on social catfish or beenverified before moving on with them? Those websites are like a background check. If they find out their past on those websites will they want nothing to do with them and decide if they want to move forward with them? Do they really look you up on those websites to find out about your reputation?