How Could the Crossbow be more Useful?

Now, don't get me wrong the crossbow is already quite useful. It can deal more damage than a normal bow, it has many unique enchantments, can store charges in the hotbar/inventory, and can even shoot fireworks!

However, late game, the crossbow has very little value. To a player in full netherite armor, many crossbows fired in rapid succession, decked out with high-level enchantments is barely a nuisance, because it only deals half a heart total! I think to improve the crossbow, new arrows could be used.

For example, iron arrows could be added, which are slightly more expensive than normal flint arrows and are crafted in a similar fashion. Firing an iron arrow from a bow would have a negative effect, for the arrow would travel less accurately and slowly. However, when firing an iron arrow from a crossbow, the arrow would travel as if a normal arrow were shot from a normal bow. The iron arrow would also do more damage whether shot from a bow or crossbow.

Another possible arrow that could be added might be a quarrel. Quarrels should not be able to be fired from a bow and only be fired from a crossbow. It would deal the same amount of damage as a normal arrow from a crossbow, but it would fly much faster and further. It could be crafted with extra feathers.

My last arrow idea would be a bolt. This could be a projectile fired from a heavy crossbow if they were to be added. This idea could open up the road to more medieval weapons and crossbow turrets/other siege machines.