@Pavel Yannara Mirochnitchenko Based on my experience, there is a delay time in intune getting the installation status. If turn off the device or disconnect the network during this time, I think it will affect the installation status time reported to intune.
If you deploy this app as a win32 app, you can check the IntuneManagementExtension.log to get the detailed time about every steps.
Thanks for your sharing about this observation.
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