Research supports cameras-on as a default norm — meetings with cameras on have 27% higher participant satisfaction and measurably higher contribution rates. Exceptions are reasonable for specific circumstances (technical constraints, connection quality issues, cultural preferences). The cameras-on norm is more important for remote participants in hybrid meetings than in fully remote ones, because the visual presence asymmetry between in-room and remote participants is most pronounced in the hybrid format. Remote participants who are visible on camera are more likely to be included by in-room facilitators and more likely to contribute spontaneously.