Two family deaths lately. Here's what they experienced:
Mom: Nothing. On pain killers. Just labored breathing until brain blue, then passed away.
Father of daughter in law: Pastor baptized his feet while he seemed unconscious, then immediately thereafter he raised his arms toward heaven,
dropped them, and died.
One on drugs, nothing. One not on drugs, maybe saw something and maybe when to heaven.
Had a grandmother not on drugs, she said she "heard the bells" of a carriage coming to get her, then she died.
Brain decay? Maybe. Seeing the light and heading for it? Maybe. In all cases, no pain evident.
Jesus said it is like falling asleep. So, you know what it's like to die, because you fall asleep every day.
Unless you die in an accident, or such. Some pain accompanies some diseases, like cancer, but drugs can take it away.
You can always drink yourself unconscious, like in the old days, and go that way, too...
I don't fear death. However, some should consider what may happen to them after death. Personally, I'm saved by Jesus. No worries, mate.