(I'm going to assume that you're a protestant and don't believe in Purgatory. If you aren't one, please change mentions of heaven in this following para to purgatory)
Jack is a good human being. He is a firm Christian who prays to Jesus, attends mass on obligatory days, shares, helps, and loves other human beings. Drew is also a good human being. He shares, helps, and loves others. However, Drew does not believe in Jesus Christ. Both live an almost similar life, and then die. Jack instantly goes to heaven. Will Drew be treated the same as Jack? Only two options are possible here- Yes, No
Some background on Drew (any one of these are applicable)
Drew lived his life in a very closed country where an idol religion was forced upon him. He grew up believing it was the right religion, and didn't dare think about shifting. (North Korea)
Drew lived on an island that has been untouched since the stone age. Thus Drew does not know about Christianity or Jesus. (North Sentinel)
Drew was born into a Buddhist family. He once thought about joining Christianity. However, he came to know of many atrocities that Christians used to commit in the name of their God, and was discouraged from joining them, especially since his Buddhist community seemed much more welcoming and peaceful.
Drew grew up in a Christian family, but his family and church community detested many things he believed God would like. (Abortions, LGBTQ). His community was very narrow-minded and never let him ask whys. Growing up, he decided to follow Atheism.
Drew grew up in a Christian family who let him ask whys, but he was never satisfied with their answers. Something inside him kept telling him that they were wrong, and many of them were indeed wrong. (Martin Luther) Drew decided to leave Christianity, and live a life abiding by rules he thought were right. He supported abortions and treated LQBTQ people equally.
Without quoting verses from the bible, without explaining why, pick a choice. God is an infinite omnipotent all knowing being, but even he is restricted by these two choices. I need you to directly pick a choice. A yes or a no. If there's any other choice (I've racked my brain up and down and haven't found any), please do mention it too.
There, that is pretty much the simplest I can go. If this doesn't solve it, I'd rather leave this thing altogether and believe in what I feel is right.
Well if God does treat both Jack and Drew the same, what's the point of being a Christian on Earth when you can, say, be an atheist? If Jack and Drew aren't treated the same, then isn't God cruel in doing so?