The front aerial quite possibly has claim to the most completely interchangeable names of any skill. In any given sentence you will see this referred to as a front aerial, an aerial walkover, and a free walkover, probably all at the same time. They’re all the same skill.
Such is only befitting a skill that appears in (nearly) literally every single beam routine ever. Note, however, that the panoply of acceptable named for this skill does not include “free aerial,” which I have seen before. That’s two words that mean the same thing.