As far as I know.....
All Boeings use an approach speed of Vref +5 minimum, to be up to Vref+20 depending on wind and gust. This is held until the 50 feet, then it can be bled off, but under really gusty conditions, you will probably touch down above Vref.
On a non-windy day, plan to touch down at Vref. Landing at Vref-7 like you mention sounds like an invitation for a tailstrike.
But different manufacturers may be calculating approach speeds differently. Years back, flying Dassault/Falcon Jet, used to fly the approach at Vref (plus wind/gust if needed), and touched down at Vref-5.