The player can enable flight mode while flying the elytra. When you turn on the flight mode, the flight on the elytra must be stopped. It does not match previous versions and java edition.
Steps to reproduce:
- Go to creative.
- Fly on elytra.
- Double-click on the spacebar, as if you were activating flight mode.
While flying on the elytra, you can activate the flight mode.
You will move slowly, but as if you are flying on an elytra.
When activating flight mode while flying the elytra, flight on the elytra will instantly stop and the player will enter flight mode.