There’s actually a meeting in the beginning of the first episode of Season 6 in which the winners of the battle for Kattegatt decide what they’re going to do and she says that she’s going to retire, that she’s done enough, that she’s weary, that she nearly died, that the people she loved are dead.
She initially decides, after she virtually comes back from the dead, that she’s going to step away from power, from responsibility, from fame.