It would be great if during presentations participants could go back and look at, for example, PowerPoint slides being presented. This can only be done now by the person sharing the presentation and I wouldn't want to jeopardize that, but if, instead of just displaying the current screen, the system software could make the PowerPoint deck available. That would be useful to individuals that may need clarification on something and would prevent avoidable questions.
The virtual background could be more smoothly integrated with the rest of the software. I don't want to distract people with the clutter in my office, so I pull the screen down and put up the virtual background, so that I have a clean interface, and they can talk to me without being distracted by what's going on in my office. But, when people don't do that, it's distracting to see what's behind them. Getting that better integrated into the program, so that it's a first class citizen and not an appendage that's been glued on, would be a really nice thing.
People should be warned that the virtual backgrounds work much better with a green screen. If you don't have a green screen, virtual backgrounds are really distracting because pieces of people appear and disappear.
I've been using Zoom since the pandemic started. It's actually been a life saving product under the circumstances that were thrust on everybody.
I have used other products like Microsoft Teams and Webex by Cisco.