Since all of the other users are displaying garbled video on your client, I think the issue is on your end and your device's ability to receive their video streams.
A few questions, and also some things to try:
Please let us know how it goes.
That screenshot looks very much like your computer is having difficulties in showing the images, or you have insufficient bandwidth available to it to receive all the video streams from the other participants.
I'd suggest you firstly make sure that your device is up to date with all its patches (windows updates, driver updates, etc), then check what sort of internet connection you are using and what else may be on the same connection using the bandwidth.