The reason I don’t address activities about the intermediate state is because there are not a lot of details given to it.

Jesus told the dying thief on the cross, "Today you will be with me in paradise" (Luke 23:43). The apostle Paul said that to die was to be with Christ (Philippians 1:23), and to be absent from the body was to be present with the Lord (2 Corinthians 5:8).

When we die we go to be with Christ (II Cor. 5:8) which is wonderful. But we are still incomplete, in a pre-resurrected state, anticipating Christ's return to earth, and our resurrections. The place we'll live forever will be where God comes down to dwell with us, on the New Earth (Revelation 21:1-3).

Throughout the book, "intermediate" Heaven was changed to "present" Heaven.

"When [the Lamb] opened the fifth seal, I saw under the altar the souls of those who had been slain because of the word of God and the testimony they had maintained. They called out in a loud voice, 'How long, Sovereign Lord, holy and true, until you judge the inhabitants of the earth and avenge our blood?' Then each of them was given a white robe, and they were told to wait a little longer, until the number of their fellow servants and brothers who were to be killed as they had been was completed" (Revelation 6:9-11).