Intune for Linux: Root-context scripts never execute

We’ve observed that shell scripts assigned to Linux devices via Intune and configured to run in root context do not execute, even though:

The script is correctly assigned to a group
The script is marked to run as root
The device is properly enrolled and syncing

However, in practice:

The script never runs
No logs are generated
No changes are applied
Intune portal indicates failure without any comments, or on the device nothing happens, even if the script only contains one line to write a simple log file for testing purposes. Only user-context scripts appear to execute reliably.

This behavior has been confirmed across multiple devices running Ubuntu 24.04 with the latest Intune agent (1.2508.17).

Expected Behavior
Scripts assigned to device groups and configured to run as root should.

Is root-context script execution for Linux devices officially supported, you mention e.g. using this for the example script to deploy chrome: https://github.com/microsoft/shell-intune-samples/tree/master/Linux/Apps/Google%20Chrome. I tried to deploy this without any changes according to readme, but this shows the same behaviour.

Environment

OS: Ubuntu 24.04
Intune Agent: 1.2508.17
Device is enrolled and compliant

Start with the Linux/Apps/Google Chrome sample and its README, then reproduce the reported behavior on Ubuntu 24.04 with Intune agent 1.2508.17 using a minimal root-context script. Compare the root- and user-context execution results and device or portal logs; done means identifying whether root execution is supported and documenting a confirmed cause or reproducible limitation.