1.21 Pre-release 1 has made the launch effect of Wind Burst enchantment stronger, but this isn't stated in the changelog.

Note: this issue preferably shouldn't be fixed by reverting wind burst to it's original state, considering how insanely rare the enchantment (Takes around 60 Ominous Vaults to get enough for just a single Wind Burst III book) is and that you only get tier I each time. if fixed so, at least make the enchantment reasonably obtainable. This change is good.