Do believe some of them.
If they see a bright light, it doesnt necessarily mean it was God. Because "Satan himself" masquerades as an angel of light (II COR 11:14)
Though we research and study, not surprised our theologies can be challenged.
Life reviews - there's books. God isnt limited by our time - or anything else.
"And I saw the dead, small and great, stand before God; and the books were opened: and another book was opened, which is the book of life: and the dead were judged out of those things which were written in the books, according to their works.' (Rev 20:12).
For some they don't believe NDEs because death is when they meet the medical definition, the natural one. But we're also spirit. (spirit, soul, and body (I Thess 5:23). Luk16 account with Father Abraham and Lazarus. 26 "And besides all this, between us and you a great chasm has been fixed, so that those who want to go from here to you cannot, nor can anyone cross ovr from there to us.' But we dont know where that great chasm is.
For as the body without the spirit is dead..." (Jam 2:26). For believers, "We are confident, I say, and willing rather to be absent from the body, and to be present with the Lord." (II Cor 5:8). Seems death is when both the spirit and soul leave the body permanently - God decides.
So what are their lives after their NDE - the fruit? Realizing that it takes time - some longer than others. Even when some are viewing their bodies, it takes a bit for them to realize it's their own bodies.
An older friend told me a little about her NDE. Her biggest regret was not telling a lot of folks about it because she knew it was God.. She said it had taken her a while to realize what had happened. When she told her husband, he knew that she wouldn't make it up but he had never heard of a NDE (they hadn't even coined the term yet). Then when she told a few people, almost every single person rejected what she was telling them. So over a period of time, she rarely mentioned it. When she told me, I was so confused and overwhelmed by her account. I didn't support her at all - which I really regret. But I hadnt heard of NDEs. Decades after it happened, what I saw was she deeply loved Jesus. An example of her behavior was when others were criticizing, complaining, and gossiping, she didn't participate. She was a very loving, sweet, peaceful person.