With Google Meet, you can invite up to 100 participants in a single meeting, depending on your Google account type. A standard Google account allows for up to 100 participants, while Google Workspace accounts offer higher participant limits. As for your webcam shows, you can host a live session with multiple viewers at once, making it suitable for promotional purposes. However, make sure to check the settings and limitations specific to the type of account you're using, as there may be variations based on your subscription plan.