The freedom of action here did not refer to physical freedom, but to the freedom of action in casting skills and attacking.
For melee professions, this freedom of action basically had little impact, because melee skills were all Instant Cast, and their attacks could also be fully controlled.
When a melee profession faced an enemy and wanted to strike the target's head with the weapon in hand, they could generally accomplish it with ease.
Mages and Archers, ranged attacking professions, were different.
A Mage's magic attacks and an archer's arrows did not come with a "lock-on" function like in online games, where selecting a target guaranteed a hit.
The reason Mages and Archers could currently hit their targets was because there was a "correction" function similar to the "lock-on" function in online games.
As long as the Mage's single-target spell or the archer's arrow was not off by too much, the system would "correct" its angle and make it hit the target.
The range of the system's "correction" was basically a radius of about three meters centered on the target.
The existence of the "correction" function was a blessing for ordinary ranged profession users, but a nightmare for top-tier ranged profession users.
That was because damage caused after system "correction" only counted as normal damage and would not trigger weak-point damage or critical damage.
For example, an archer might have fired an arrow meant to hit one of your weak points or vital spots, but because of the system's "correction," it only dealt normal damage. That was simply too unfair to them.
Therefore, after completing Profession Advancement, one could choose whether to enable freedom of action. Once enabled, the system's "correction" function would be disabled.
Aside from that, there was also the relationship between freedom of action and skill casting.