Not enough porn ends with the man balls-deep in the woman, his scrotum twitching as he pumps cum into her cunt.
I understand that's much more difficult to get on film than a dude pulling out and cumming all over his partner, but the latter just feels performative to me. I've been having sex for almost 3 decades now, and I can count the number of times I've pulled out to cum on my partner rather than in her (condom or no) on one hand.