@UlrichMendel checking with the team on this. I've moved your other post on this topic to our Idea section.
Hi @suzyytom, welcome to the community.
When you first start or join a GoToMeeting in the GoTo App you can preview your webcam and audio settings, and select a virtual background or blurred background on the preview screen. Once you are in the meeting you can open you camera settings to change the background settings if needed.