Several PAs never made it to the final version, check that user's channel and you'll see "accidental leaks" videos of the alpha/pre-beta PSU and it shows even more stuff that never made it into the final game, along with multiple animation changes for sabers, swords, handguns, double sabers, etc. Do note that several humanoid NPCs still use them though, you'll recognize several of those animations due to that, specially the saber animations.
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