@Hunter9676, Thanks for posting in Q&A.
From your description, I know you want to deploy .net SDK version via Intune.
Unfortunately, there is no more information about how to deploy .net SDK version 9 I can find for the deployment. However, there are some other ways you can refer to deploy it via Intune.
Here is a link you can imitate to deploy .net SDK version 9 using Intune.
https://www.reddit.com/r/Intune/comments/hv54jq/deploy_net_framework_20_35_40_via_intune/
https://www.reddit.com/r/Intune/comments/s9kuun/net_framwork_35_via_intune/
https://silentinstallhq.com/microsoft-net-framework-4-8-silent-install-powershell/
Non-official, just for reference.
For the installation script, you can refer to this link.
https://learn.microsoft.com/en-us/dotnet/core/tools/dotnet-install-script
And for the detection method, you can use script to detect the values in the registry to determine whether the installation was successful or not.Hope it can help you.
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