Supporters of pop star Britney Spears gather with cutouts and signs outside Los Angeles Superior Court in Los Angeles, the venue for a hearing on the conservatorship that had overseen her life and fortune since 2008, on Nov. 12, 2021. The pop star’s arrest on suspicion of driving under the influence this week was a breaking point, years after she regained control of her life and finances. (Chloe Pang/The New York Times) By JULIA JACOBS In the four-plus years since a judge ended the…