I suggest you reread all of what you've posted.
Christ’s death and resurrection changed everything. We are literally in a different dispensation now.
So prior to the Resurrection the dead were not dead but after the Resurrection the dead are now dead?
>>literally in a different dispensation now.
So prior to the Resurrection the dead were not dead but after the Resurrection the dead are now dead?<<
No, prior to the death and resurrection of Christ the rules were different. Since we are discussing something of which the bible gives us very limited understanding, I am reticent to use it to support any doctrine outside the context of the actual scripture that discusses it.
The rules were different before Jesus death and resurrection. And the apostles never discuss what is going on with those who die after that event other than to say they sleep or rest or (insert similar euphemism here). So anything we say about my dead grandma and what is going on with her quality of existence right now is pure speculation. And our whole concept of “now” very likely does not even exist where “she” currently resides.
>>literally in a different dispensation now.
So prior to the Resurrection the dead were not dead but after the Resurrection the dead are now dead?<<
Heck, maybe Jesus “woke them up” for a minute to give them a chance to accept Him. and then let them go back to “sleep/rest” until the resurrection. Who knows. What we do know is what it said, and to whom it applied.