Free will is the faculty dealing with superabundant goods.
If this is right, the Libet experiments were testing fishing equipment in the desert.
The will finds far more that can fulfill it in the world than it can possibly conform itself to. But it does not coin-flip to choose.
Freedom would be necessary if only to co-ordinate personal history, subconscious life, natural talent, providence.
The computer program seems to do what freedom does: consider the probabilities of possible outcomes and choose the highest or, if there are equiprobable outcomes, flip a coin as a tiebreaker. For us to acquire experience and choose on the basis of this experience, so the argument goes, is just to do sloppily and imperfectly what the computer does in its undistracted retrieval of probable outcomes. But all this requires no freedom or even consciousness.