Why did Red Bull sack F1's longest-serving team principal Christian Horner mid-season?

Christian Horner, F1's longest-serving team principal, was sacked by Red Bull mid-season after several controversial decisions, including dropping Sergio Perez months after contract extension and moving Liam Lawson to Racing Bulls after just two races. Allegations of misconduct by a female colleague and a public rift with Max Verstappen’s father Jos may also have contributed to his departure.