The purpose of Focusmate is to create an environment similar to working with someone. When you're constantly out of sight, it diminishes the utility of the service for your partner.
So, yes being on camera/video for the majority of the session is important and part of our community guidelines, but you can step away briefly for a bathroom break or to tend to something but please let your partner know in the chat before doing this.
For example, brb, bio break. brb, need 5 mins someone is at the door. etc.