Hi @DLGross ,
Do you want to change the Owner of canvas app when importing it from Dev to Prod Environment?
If you want to change the Owner of canvas app when importing it from Dev to Prod Environment, I afraid that there is no way to achieve your needs in PowerApps currently.
Actually, the Owner of app when importing it from Dev to Prod Environment is based on the sign in account of the target environment (Prod Env).
If you want to change the Owner of a canvas app, I think the PowerApps PowerShell cmdlet -- Set-AdminPowerAppOwner could achieve your needs. I have made a test on my side, please take a try with the following workaround:
The PowerShell cmdlet as below:
Set-AdminPowerAppOwner -AppName '526db76e-6ff8-4399-ba4e-df5bb897308b' -EnvironmentName 'Default-9e51064f-f6a5-41a2-89a9-9785a9d6c706' -AppOwner 'daf3bbc5-xxxx-4339-xxxx-50f51f1b4664'
More details about PowerApps PowerShell cmdlets, please check the following article:
https://docs.microsoft.com/en-us/power-platform/admin/powerapps-powershell
Best regards,