This bug existed ever since the elytra existed on mobile bedrock edition

There is not any “boost” button above the hot bar on mobile devices for boosting the elytra with fireworks. It still works if you tap and hold on the screen when the elytra is active but it becomes hard to go airborne from the ground if that’s the only way. If you are to fix the bug, and making a button for this, Please put this button exclusively above the jump button to make it easier to reach when boosting off the ground.