You need to have one. You need to know what you’re doing and why you’re doing it. More importantly, other people need to know it, too. We can’t create shared agendas – nor work effectively together – until and unless we know what we want or need to happen.
There’s also a literal side to it.
A meeting without an agenda is a recipe for aimless, wandering conversation. In a world where we’re all getting Zoom fatigue, that’s the last thing we need. Unless, of course, the aim of the meeting is aimless conversation, in which case that’s your only agenda item. 1
If you can’t articulate what you want to discuss as an agenda for a meeting, you should be questioning why the meeting is happening in the first place. Writing it down and sharing it ahead of the meeting keeps you on course and, who knows, you might even finish early.