No, most do not execute, however, a very large number give their tacit approval as shown by their inaction against people who do commit these sorts of violent acts.
This is a scene right before they decided execute 4 people by throwing them off of a roof.
Are you suggesting that the thousands of people who gathered to watch the show and cheer "aren't
real Muslims"?
This idea that "You're not an extremist as long as you don't actually swing the sword or pull the trigger yourself" is muddying the waters in terms of recognizing how pervasive some of these violent ideas are in some Muslim communities.
This notion that 'it's only a very small minority that hold these pernicious beliefs, the rest are all peace loving moderates' is a false one.