Back in March I suggested to Zoom, they add a low bandwidth option which the participant can switch on (request #3204325, priority "high", 26 March). The documentation says screen sharing with video thumbnail is possible at 50-150kbps, but I could not get that to work, even when I shaped my network connection to that speed. As well as allowing to user to activate this manually, I asked Zoom to adjust their system so it came on automatically, sooner. Since then I have experimented with how to reduce the bandwidth Zoom uses, so it works better on slow links, particularity wireless ones. But there are many people who still have difficulties. On 4 August, Zoom replied to say my suggestion had been added to their feature request list. But it took Zoom four months to reply, so they don't seem to be in a hurry to implement this. If you think it is a good idea, please tell Zoom.