Hi SarmadAlton,
Thanks for reaching out to Microsoft Community and posting your inquiry.
The built in camera app doesn't give you the virtual background effect. You would need to check what app you're using in meetings (like zoom). Check on the settings of these apps. The meeting apps are the ones who creates/provide the virtual background. This is mostly included as a feature for most of the meeting apps like Zoom.
If this answers your question, we highly encourage you to inform our Community by clicking on Yes or marking my post as an answer. This will help other members who may have the same issue as you. Otherwise, don't hesitate to update us so we can further assist you.
Kind regards,
John Neil_J