Lucifer flies to Heaven to retrieve Chloe, despite knowing he will die. He is briefly protected by Lilith’s immortality ring but uses its remaining power to send Chloe back to Earth, seemingly burning to ash after finally telling her "I love you". Resolution and Outcome
The episode reinforces the show's core message that redemption is possible for anyone who can face their own guilt, exemplified by the minor character Lee Garner ("Mr. Said Out Bitch") becoming the first soul to leave Hell for Heaven.
After God retires to an alternate universe, Michael gathers an army of angels at the Los Angeles Memorial Coliseum to secure the vote to become God. Team Lucifer counters with a smaller force, eventually bolstered by Maze, Eve, and a demon army composed of souls from a crashed prison bus.
about why Lucifer didn't actually burn in Heaven. Lucifer Season 5 Ending Explained - Den of Geek