Currently you can only select large gallery when there are a minimum number of participants. I want to always be able to select it because I always want my video in the same area instead of tiny in the corner.
This is especially important when sharing screen and having 1 or 2 people in your class or seminar to teach. The host should not be limited in viewing the participants just because there are only one or two. The gallery window should be scalable regardless number of participants and the participant video tiles should adjust accordingly. Otherwise, the tool is useless for teaching.