That is all well and good but how do you:

- Ensure the Linux machines are up-to-date and users are not just indefinitely postponing OS updates?

- Same as above but with programs/software

- How do you ensure correct settings configuration in terms of security? Say default browser, extensions, program access etc?

- Re-image or reinstall the OS when there are issues or PC handover to another employee? Manually with a USB stick?

This kind of control exists and is needed for Linux and MacOS too. RMM is not a Windows only thing...

The critics here see Intune but what if they used another RMM and they compromised another cloud RMM account? Same issue.