Kindly refer to the following link(s):
https://www.assimalhakeem.net/if-a-person-died-what-happen-immediate-after/
Where is the soul when the body is in the grave?
Condition of the people of al a'araf in their graves
If the soul of a believer is taken out in a peaceful way, why did Prophet suffer in his last hours?
If soul of a believer is taken out in peaceful way, why did Prophet suffer in his last hours?
What happens to the souls of those who were not buried? (website)
Answer:
And Allah Knows Best