Copilot is no longer available. This could be due to a recent update, changes in your company's domain permissions, or adjustments in your browser or app settings.
1. Software Update: It's possible that a recent update to Copilot or the Microsoft 365 suite has temporarily disabled or removed the voice search feature. Sometimes, features are updated or reconfigured, which might cause temporary unavailability.
2. Company Policies: Your organization's IT policies might have changed, restricting access to certain features like voice search. This could be due to security concerns or other administrative decisions.
3. Browser or App Settings: Ensure that your browser or the Copilot app settings haven't been changed. Sometimes, certain settings or extensions can interfere with the functionality of Copilot.
Please refer to the link
Configure voice capabilities - Microsoft Copilot Studio | Microsoft Learn
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