"There is an apparently new iOS 18 security feature that reboots iPhones that haven’t been unlocked in a few days, frustrating police by making it harder to break into suspects’ iPhones
…
Apple added “inactivity reboot” code in iOS 18.1 that triggers iPhones to restart after they’ve been locked for four days"
If you use your personal phone for work you can do with it whatever the hell you want, it’s your phone. If work requires you to do something they can give you a phone in which tondo that