Enable Remote Management
Apple docs suggest there is an Enable Remote Management MDM command available, I can also see Remote Desktop Enabled as a field in the device Security section- would be useful to have a per device / per group option to enable this for the MDM-generated admin account. Handy for those of us still using ARD, and easier than signing up for a developer account building a signed package just to run a shell script.

Please find a new “Enable Remote Desktop” action on the device details screen.
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Eddie Kelley commented
Additionally, since it *is not possible to enable ARD via shell script in Mojave and later*, being able to do it via MDM is the only way to accomplish this task other than by having direct physical console access to the computer.
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Eddie Kelley commented
Here's the KB article that discusses this MDM feature: https://support.apple.com/en-us/HT209161