Please bring back the sneak-in-air feature

In the earlier version, players in creative mode can sneak in air while flying with or without a block under their feet by simply pressing flying up and down simultaneously. Thanks to this feature, players can put blocks adjacent to intractable blocks like chests and hoppers with ease, which is a real life saver. Unfortunately, in the recent version, I’m no longer able to do so. This has affected the gameplay experience. So please bring it back!