We love your feedback on improvements. One feature you've been asked for is to change the camera background. And this is something we will look into.
Until then, you can use a virtual camera as a workaround.
One tool that we've discovered is Chromacam.me
They have a free version that includes:
Virtual Green Screen
ChromaCam watermark
Limited background blur
Standard image backgrounds
Start Vaam extension and click on the camera options and choose ChromaCam
Try it out and if you find any other similar tool, please let us now π
(This is a third-party tool. If you have any questions about how it works you can reach out to their support here)