Boss gave me a iPhone 6
but doesn’t remember the Apple ID or password doesn’t remember any of it how can I remove the Apple ID so I can use the iphone
iPhone 13, iOS 17
No, you cannot use the iPhone because it is most likely been activation locked to your bosses old Apple ID
If your boss still has valid proof of purchase information for this iPhone, he start an Activation Lock support request. At Apple to get the lock removed.