Don’t want to drift OT, unfortunately as FlightDetent said the standard decelerated approach is something I really managed to fly rarely.
I like to select F1 around 3NM before FDP, then F2 latest 2000’ and continue configuring all the way down. Unfortunately either because some procedures ask fixed speeds at certain points (fe MXP with the new procedures) or because ATC requests, the rare times I planned for a standard decelerated appr I got the request to reduce 160, so I had to call gear down very far to manage my deceleration.... not really efficient