@Khushboo Kumari, Thanks for posting in Q&A.
Based on my researching, MMR (Multi-media redirection) is supported on both Chrome and Edge browsers for Windows.
We can update the Remote Desktop client for Windows to version 1.2.3916 or higher and install the MMR host on VMs to make it work:
For Multi-monitor, based on my research, the browser client doesn't support multiple monitors at this point. It only support on Windows Desktop:
You can feedback to Windows 365 uservoice to see if it can support in the future:
Thanks for your understanding and hope the above information can help.
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