The bug
Goats are less susceptible to fall damage than other mobs. It'd be expected that as of 24w06a, this property would be controlled by the entity.generic.fall_damage_multiplier attribute, however this is not the case.
How to reproduce
Use the attribute command to query this state on a goat
Expected result
By default, this would be a value less than 1.0.
Actual results
It defaults to 1.0
See MC-270116. Goats should be added to the report.