With regards to personal vs impersonal I think consciousness in the afterlife is much like it is in the earth life.
If you want to know what it is like in the afterlife, the best source of information is here:
https://www.leslieflint.com
this is good too:
https://ncu9nc.blogspot.com/2013/07/what...rlife.html
But my view of consciousness in the earth life is that it is impersonal.
So you don't have to worry about losing your identity in the afterlife. The question about impersonal vs personal is something people don't understand. There is no conflict between identity and unity. It has been described as two sides to the same coin. or like a comb with each tooth connected to all the others, or like a wave in water, you can't separate the wave from the water.
Do you choose your emotions? Do you get distracted when you try to concentrate? Don't thoughts just pop into awareness without you choosing them or consciously forming them? Can you turn off your senses? Does your sense of self change from situation to situation, ie student, employee, parent, child, friend, sports fan, nationality, does your sense of your own character change with your emotions ie. pride, shame, happy, sad? Does the quality of existence change with changing sensations pain, pleasure, taste, warm, cold, comfort, discomfort etc.? Do you sometimes have conflicting desires like wanting to eat yummy food and also to lose weight?
Most people know all this but they still think they are a self in control of their own consciousness. The reality is that they are a bunch of disparate unconscious processes that generate thoughts, emotions, impulses, sensory experiences, and senses of self. The self-image is not an actual thing that has existence, it is something that you imagine. The pixels that make up the self-image are thoughts, emotions, impulses, sensory experiences, and the senses of self and noself all of which arise from unconscious processes.
The sense of free will is caused by impulses that occur before actions that you can follow or reject, but where do the impulses and the decision to follow or reject come from? They come from unconscious processes. You might feel like you are just an observer, but that is only when you are thinking about being an observer, when you are just observing and not thinking, you don't feel like an observer - the feeling of being an observer is just a thought like any other thought.
So nothing changes after death, consciousness continues to be impersonal but if you think it is personal in the earth life you will probably think it is personal in the afterlife.
You can say that the personal arises from the impersonal. But a deep understanding that consciousness is impersonal has an advantage in that it undermines attachments so that you don't need to defend the imaginary self-image from insult and injury - this means you can react to things with reason and compassion instead of selfish emotions. The result is that you suffer a lot less.