I quit Reddit a while back so it’s nice being on a similar place again. I scroll through federated posts mostly, since that matches scrolling through r/all.
This matches how I was taught by my driving instructor.
I was taught you indicate left if you’re taking the first exit, no indicating for straight across until you’re about to exit the roundabout, at which point you indicate left. Indicate right for the other exits until you’re about to exit, then you indicate left.