Will all Muslims, including hypocrites, those who abandon prayer, and those who commit polytheism, enter Paradise after spending a period in Hell?

Summary: The general principle for entering Paradise or abiding in Hellfire is that whoever dies upon Tawhid (monotheism) enters Paradise, and whoever dies upon Shirk (polytheism) enters Hellfire.

1. The Greater Polytheist (al-Mushrik al-Akbar): Whoever falls into major Shirk and dies upon it without repentance, whether they were an original polytheist or an apostate, their deeds will not benefit them, nor will their affiliation with Islam, because Shirk nullifies deeds. 2. The Abandoner of Prayer: Whoever completely abandons prayer is a disbeliever (kafir), and thus their deeds are nullified. 3. The Greater Hypocrite (al-Munafiq al-Akbar): The hypocrites who conceal disbelief and outwardly display faith, their destiny is the lowest depth of Hellfire. 4. The Perpetrator of Practical Hypocrisy or Sins: Whoever falls into practical hypocrisy, or minor Shirk, or major or minor sins, does not become a disbeliever thereby nor does he exit Islam. If he dies upon Tawhid, his matter is up to Allah: He may either punish him for his sin and then admit him to Paradise, or forgive him and admit him to Paradise from the outset, based on the Prophet's (peace be upon him) saying: "Whoever dies without associating anything with Allah shall enter Paradise."