Most folks struggle with either, but you're right - most fear a group more.
I don't do terribly well sitting and speaking. I'm not as good at that, even with a group. Many of my videos were taken with a selfie-stick, while out walking or hiking (a very different feel when I'm active), using an image stabilization app. When I film in my "studio", I find it takes a fair amount of concentration to stay in-frame. I have the same issue when I try to video a training seminar. I even had one where I thought it would be easy, because the room actually had a small stage. During filming, I left the stage (and camera range) at least 4 times while talking.