As an enterprise also using MECM (SCCM) I echo Daincha.
There also seems to be some contradictions and/or lack of clarity in how we are supposed to move forward as an On-Prem enterprise. The idea seems to be to use Co-Management with Intune and our clients will use the Intune Company Portal app rather than Software Center. So we have thousand of computers currently in SCCM, Co-Management has been setup and enabled for my pilot collection, but how do we install the Company Portal app on these devices?
The answer I've received so far is to use the Microsoft Store for Business and sync with SCCM, which is what we're already doing.... but the Microsoft Store for Business is going away, so that won't work anymore, right? I've download the "offline" version of the Company Portal from the Store for Business and created my own Appx application within SCCM as well, but my understanding is that this functionality also goes away with the Store for Business, is this also true? If so, I'm kind of at a loss. Is this where we need to make use of WinGet scripts deployed to the machines since there is no offline installer for the Company Portal?