Description:

Unlike Java Edition, the ender dragon here does not launch you up in the sky when charging at you. It simply deals long horizontal knockback but not high vertical knockback.

Expected Results:

The ender dragon should somehow launch you high up in the sky instead of dealing long horizontal knockback but not high vertical knockback. 

The ender dragon in some extent, can fling the player high up when perching like the Java Edition, since the dragon does not do any melee damage when perching in Bedrock.