Seabreeze said "The dead in heaven are awaiting a resurrection. 2 Corinthians 5:8, which suggests believers are "away from the body and at home with the Lord"."
There are no dead in heaven. Any in heaven are alive.
Here is how it works. Everyone who has died since Abel is in Sheol/hades/hell aka the grave. Since the time of Pentecost, Christians started getting anointed with holy spirit. When they died they were still dead. When Jesus became king, he cleansed the heavens as John 14:2-6 (prepared a place for the apostles) and Rev 12 says casting out Satan from the heavens. Then those dead in Christ were raised to heaven. Then after that time, any anointed left, when they died were instantly raised to heaven.
As for 2 Cor 5. It says "For we know that" Who is that 'we'? Paul and the Corinthians. Not you or anyone in this century.
vs 5 "Now the one who prepared us for this very thing is God, who gave us the spirit as a token of what is to come" That token is the holy spirit that they were anointed with. That 'us' is Paul and the Corinthians as they were anointed with the holy spirit.
vs 8 "But we are of good courage and would prefer to be absent from the body and to make our home with the Lord" So it is what they would prefer. That is not us today.