Understanding Office 365 ProPlus Updates for IT Pros (CDN vs SCCM)

Hello, we are on 1908 and use SCCM to update Office. Since we are doing Deployments without DP content (pull from Microsoft Update is selected) we wish to use DO. We run Windows 10 Enterprise.

So what is a bit confusing it the below.

For Version 1908 through Version 1911, you need to configure a registry key on devices in your organization before installing Microsoft 365 Apps on those devices. You can use the following reg add command to configure the registry key:

reg add HKLM\SOFTWARE\Policies\Microsoft\office\16.0\common\officeupdate /v SetDOAsPrimary /t REG_DWORD /d 1

And then this:

If you're using Configuration Manager or local network shares to manage installing and updating Microsoft 365 Apps on devices, Delivery Optimization won't be used. Delivery Optimization is used only if you're installing or updating Microsoft 365 Apps directly from the Office Content Delivery Network (CDN) on the internet. If you want some of these devices, such as those on Monthly Channel, to take advantage of Delivery Optimization, you need to reconfigure them to use the Office CDN. You can do that by using the Office Deployment Tool or Group Policy settings, depending how your environment is configured. You have to remove any configuration of the update path as well as the use of the OfficeMgmtCOMattribute, which enables Configuration Manager to manage updates.

I have added the key but haven't disabled the COM, so SCCM is still responsible for updating Office.

BUT, considering that there is no Software Update Package created on DPs (since we only push out metadata and point clients to MU for the bits) will DO be used in this scenario?

In this case, the PrioritizeBits will do its work as in the past.

Now, if we fully switch to CDN for updates so we disable COM, this will mean that the reg key will start functioning again for DO?

Wouldn't it be better to move our Office ProPlus workload to Intune if we are co-managed? That would serve us the same I guess and lean more towards Modern Desktop and would completely take out the SCCM parameter?

Thanks!
Alex