The Zoom logo has appeared on my recordings

Recently, the Zoom logo has appeared on the bottom right of my recordings, as a white lettered overlay. It wasn't there before. I am now using a room for meetings, often, so is that it - although I'm not sure that it happened at the same time. How can I stop this from happening. I like a nice clear video recording I can use for other things. Also, I am now recording the Zoom meeting in Fathom AI. Could that be the reason too.

Thanks - Nigel