Power App Co-authoring alternatives

So far from what I see and have read PowerApps only using GitHub integration to allow multiple developers to work simultaneously on a PowerApp canvas?
Due to the environment I work in it seems the agency does not allow nor does it have it available in the PowerApp settings to set up Git version control.
The "Show the Git version control setting" is not even an option in Experimental section.
Has there or will there be any alternatives?
Is it a License version? I am on E3

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General Questions