When it comes to time-travel stories, superhero movies and TV shows don't necessarily develop them well. The Flash (both The CW series and the Ezra Miller film) had odd loopholes, paradoxes and unanswered questions. The fourth and final season of Doom Patrol has followed suit with its temporal quandaries thanks to Immortus. It reiterates the message that time travel is a tricky concept to nail.
Source：https://www.cbr.com/loki-season-2-avengers-endgame-mistake/
