Standup is for the team, not the manager or PM. It serves multiple functions, but the most important is the last bit: "are you blocked by something?". Most of the time, someone else on the team knows how to unblock you. Other times, your manager is better positioned to get you what you need than you are. Most of us don't care when you work, or how much progress you made today, or whatever. Our job is to keep the ball rolling, not manage your time.
The status update portion exists so that your manager doesn't randomize you in the middle of the day asking about that thing you're working on. Not because s/he thinks you're slacking, but because your work ties into a bunch of other work that's going on, and it's the manager's job to coordinate. While you may be more effective working as an information silo, your team and org are hindered by it.