If free will is defined (I don’t see that anyone did it yet here), it is easy to see that it is consistent with many-worlds. Ordinarily free will has a simple definition: if a person is thinking about what to do, there is more than one thing that he can conclude and do.
According to many-worlds, there are many things that he does conclude, and does do. If there are many that he does do, then there are many that he can do. So by this definition of free will, he has free will.
If free will is defined (I don’t see that anyone did it yet here), it is easy to see that it is consistent with many-worlds. Ordinarily free will has a simple definition: if a person is thinking about what to do, there is more than one thing that he can conclude and do.
According to many-worlds, there are many things that he does conclude, and does do. If there are many that he does do, then there are many that he can do. So by this definition of free will, he has free will.