I host a now-hybrid event called Game Devs of Color Expo and we’ve receieved a LOT of positive feedback from online attendants about using the Gather application.
The feature allowed ticket holders to make small avatars and move around a virtual pixel space (similar to Pokemon or Undertale), but also allowed voice and video combined with proximity audio so you were able to be in a secluded group with different people talking about a specific topic, or go into another small group with others discussing another topic.
We also had it link to different YouTube videos so we could show off talks/trailers during the event.
Really cool application especially for online showcases.