Looks to me like they only mean the kind of websites, where you allow the application to use your Facebook profile, like Tinder or some minigames so that they c

Looks to me like they only mean the kind of websites, where you allow the application to use your Facebook profile, like Tinder or some minigames so that they can post "XYZ has clicked 1000 times in FooClicker!" on your timeline. This kind of history you'll be able to clear. I doubt they mean the tracking cookies that are everywhere in those "Like" buttons.