There are lots of dead souls in heaven, thinking, feeling, remembering, talking etc.
There are living souls/beings that can, think, feel, remember, talk, etc., but no dead ones that can do those things. There are no dead souls/persons/beings in heaven. Matthew 22:32
In regard to you citing Rev 6:9-11, none of those said souls/persons are in heaven now, nor are they alive now, nor did that majority of them even exist when John was given that vision. You need to read Rev 20:4 with it.
[9 When he opened the fifth seal, I saw underneath the altar the souls of those slaughtered because of the word of God and because of the witness they had given. 10 They shouted with a loud voice, saying: “Until when, Sovereign Lord, holy and true, are you refraining from judging and avenging our blood on those who dwell on the earth?” 11 And a white robe was given to each of them, and they were told to rest a little while longer, until the number was filled of their fellow slaves and their brothers who were about to be killed as they had been.]
[4 And I saw thrones, and those who sat on them were given authority to judge. Yes, I saw the souls of those executed for the witness they gave about Jesus and for speaking about God, and those who had not worshipped the wild beast or its image and had not received the mark on their forehead and on their hand. And they came to life and ruled as kings with the Christ for 1,000 years. 6 Happy and holy is anyone having part in the first resurrection; over these the second death has no authority, but they will be priests of God and of the Christ, and they will rule as kings with him for the 1,000 years.]
Notice that those that still needed to be killed are the ones that live during the time of the 8th king/MOTB period. This time is still future; therefore, no way were they on hand when John saw that vision. And even as it pertains to the said souls seen that had been 'executed for the witness they gave', it would have been a very limited amount killed at that time from Jesus' ascending, when after they gave a witness about him to when John wrote Rev.
All who will rule with Jesus will be killed for their faith in God and Jesus and a number of them will be on hand and killed during the 8th king rule. Then when the numbered is filled they ALL will be resurrected at the same time in what is said to be the 'first resurrection'. Them being told to rest longer denotes that they have been resting already. This means from the vision we know they are resting/dead when they are killed and will continue as such until the full number is filled during the 8th king rule.
Speaking of all needing to be killed for their faith in God and Jesus to be chosen to rule with Jesus. The GB just does not what to speak about that fact. Joseph Rutherford died January 8, 1942 of colon cancer. He was living at Beth Sarim at that time. Guy Pierce died March 18, 2014, of a stroke. He was living at Bethel. Neither one of them lived to go through the time of the MOTB and neither one of them were killed for their faith. Based on what Rev 20:4 says on who are the ones that will have part in the 'first resurrection' and rule with Jesus and what Paul (Philippians 3:10,11) says, does any here think that Rutherford or Pierce are chosen ones? I don't! Now apply that same criteria to ALL current GB members and ALL that have died between Rutherford and Pierce.
But wait there's more. Apply that same criteria to the 5 popes there have been just in my lifetime so far. Will any of them have part in the 'first resurrection' and rule with Jesus? I don't think so!
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All live at Vatican at the time of their death even in the summer palace they have for them.
Giovanni Enrico (Pope Paul VI)
suffered a heart attack while listening
to a mass in the private chambers of his Castle Gandolfo summer palace…Doctors
were administering oxygen to the pontiff in a futile attempt to keep him
breathing when he died, Vatican officials said. 6 August 1978
_
Albino
Luciani (Pope John Paul I)
On 29 September 1978, on what would have been the 35th day of his
pontificate, John Paul I was found dead in his bed with reading material and a
bedside lamp still lit. He had suffered a heart attack the night
before. 28
September 1978
_
Karol
Wojtyła (Pope
John Paul II)
John Paul II died in his private apartment of heart failure 2 April 2005
_
Joseph Ratzinger (Pope Benedict XVI)
Benedict died on 31 December 2022 due to cardiogenic shock, resulting
from respiratory failure
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Jorge Bergoglio (Pope Francis)
21 April 2025 died in his residence - death was
caused by a stroke, which led to coma and
irreversible cardiac arrest