The same fireworks from the same dispenser go much higher in the latest snapshots than they did in 1.20.4 I was able to recreate this in 24w13a and higher, but not in 24w12a and lower.

Steps to recreate:
-Create a world in 1.20.4, or any 1.20.5 snapshot before 24w13a. 

-Craft a firework star. I made one from red dye, gunpowder, and a diamond, but any should be fine.

-Craft a firework rocket using this star. I used the firework star, paper, and 2 gunpowder.

-Place this rocket in an upwards dispenser, activate it, and note how high the rocket flies before exploding.

-Update your world to 1.20.5 Prerelease 1 or any snapshot after 24w12a.

-Launch this same firework from the dispenser, and notice that it has gone much higher than before.

What should happen:

The firework should go the same height in both versions

What happens:

The firework goes significantly higher in the new snapshots.