If god is omniscient does that mean he knows what people will choose to do or not?

You are correct. 'Free will' means making definite something that was previously indefinite. When I choose which pair of shoes to put on I have created 'something' that did not exist, and YHVH Himself didn't 'know' which pair I would put on. He does know how He will end this mess, and no one can stop Him, and in that sense He 'KNOWS the end. " Not knowing something that is not there to be known is not a form of ignorance, just as not seeing something that is not there to be seen is not a peculiar form of blindness." We have been so misled by foolish people who thought they were 'magnifying' 'god' though in fact they were misunderstanding Him, that the truth seems funny, and out of focus.