Real-time voice or video communication between users on mobile devices or computers
Hello @Enrico Stark
The missing option is most likely explained by the account type, not your Teams version or device.
A Microsoft 365 Family account uses Microsoft Teams for personal use (Teams Free). Microsoft's current documentation for Teams Free lists background blur, custom backgrounds, and video filters, but it does not provide the Green Screen toggle available in Teams for work or school.
So, unfortunately, there isn't a setting you can enable in your Microsoft 365 Family account to make the Green Screen option appear.
You can still use More → Video effects and settings and then select Background blur, a Microsoft-provided background, Your own uploaded background, and Available video filters
If you specifically need Teams' Green Screen functionality, you would need to use a supported Teams work or school account where that feature is available, subject to the device/hardware requirements.
This also explains why reinstalling Teams, trying another computer, or updating to the latest client hasn't brought the toggle back. The available meeting features can differ between Teams personal and Teams work or school accounts.
Microsoft references:
Add a background or video filter to a Microsoft Teams Free meeting
Microsoft Teams Free vs. Teams work or school
So for your follow-up question: No, there currently isn't a Green Screen option that you can enable for a private Microsoft 365 Family/Teams personal
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