What is in islam does everyone go to heaven?

In Islam, it is believed that ultimately it is Allah who decides who goes to heaven and who goes to hell. It is not guaranteed that every person who claims to be a Muslim will go to heaven.

Islam teaches that faith and good deeds are essential for entry into paradise, and those who do not have faith or good deeds may not be granted entry even if they were born into a Muslim family. On the other hand, non-Muslims who lead righteous lives and believe in one God may be granted entry into paradise.

Overall, entering paradise is based on one's deeds and intentions, as judged by Allah. The final decision rests solely with Allah, and it is not possible for any human being to predict who will enter heaven or hell.