Does God’s omniscience also include experiential knowledge or only knowledge of past, present and future as they really are? By experiential knowledge I mean does God have the experiential knowledge of what it is like to sin? God has never sinned but although Him being omniscient knows what it’s like to sin, can He have experiential knowledge of what it is like to sin. Perhaps my whole point of this question does God’s omniscience also cover experiential knowledge?

God is by definition Perfect and All-knowing, and is even the Creator (!) of all the experiences about which you ask.