cannot integrate 3rd party storage if using a licensed account on Adobe Acrobat web, ADD STORAGE link disappears

On Adobe Acrobat web, if you have an unlicensed AKA FREE account, you can integrate 3rd party storage by going to Documents > OTHER STORAGE > ADD STORAGE. For my account, the options include OneDrive and Google Drive.
The moment I add an Acrobat Pro subscription to my account, this entire OTHER STORAGE section disappears.
I remove the subscription and the OTHER STORAGE comes back.

I have tested this on the following operating systems and browsers in all combinations:
Windows 10, Google ChromeOS, Mozilla Firefox, Google Chrome. The bug is persistent.

On your product's sales page, it explicitly states that this feature is supposed to be there:
https://www.adobe.com/acrobat/pricing/compare-versions.html
Acrobat online: Use PDF and e-signature tools in any web browser. Our prebuilt integrations for Microsoft OneDrive, Google Drive, and more make it easy to store and share files online. You can even send documents for e-signature and track responses in real time.

I also have a case with customer support that is running 1+ month already and just this week they said this is intended product design according to you dev team:
ADB-33875246-F3S7
They say "only free accounts can add 3rd party storage, none of the paid accounts have this feature".

Having spoken to at least 10 different persons from customer support, with each one telling a different story, it is very hard to figure out who is telling the truth.