JamesC95 I'll try to clarify a couple of things:
- The new Store app on Windows 11 isn't broken. It only allows for an MSA login, not an organizational or educational login - this is by design. Even if it allowed for an organizational login, there still wouldn't be a Store for Business tab, as MSfB was not included in the design of the new Store "experience".
- You can still attach your Intune tenant to your current Store for Business tenant, find apps in Store for Business (via Microsoft Endpoint Manager admin center), and deploy them to your Windows 11 devices with Intune. Users would then use Company Portal to install the app. If this is the same process you use for Windows 10, this does not change in Windows 11.
- The planned experience using Windows Package Manager, private store repository, and Intune with Company Portal is still being coded. When it's ready for Private Preview - first half of 2022 - we'll have more information available on how it works. We expect this to be generally available by H2 2022.
- As longs as the new Store is blocked on the Windows 11 devices, I'd recommend that you hide the icon.
I hope this helps.
Microsoft