According to the PMBOK (7th edition) by the Project Management Institute (PMI), daily standup is a "brief, daily collaboration meeting in which the team review progress from the previous day, declares intentions for the current day, and highlights any obstacles encountered or anticipated." Source

To be fair, daily standups are defined however your group collectively decide to define it.

For those who decide to report the work from previous day, it’s expected that you would have made your list before the meeting, not during. It’s a practice I too struggle with. 😊