Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Finally, trust me if Microsoft were not going to support look and feel and any longer they would 100% shut down the ability from all avenues. Level 3 support is probably the only one that might give you a correct answer and probably wont be based overseas like the first two. Fingers crossed, but I really cant believe that a company can grow so big that they refuse to admit to making a mistake.
Microsoft Level 3 support is also outsourced to Asia and is also unrelated to Microsoft and its software engineers.
When my Office 2016 issues were finally sent to Level 3 they were confirmed as bugs. The staff at Level 3 were unable to escalate to Microsoft for resolution. The most these staff can do is try to show the user what they are doing wrong or find a work-around. When they confirm a bug in the product all they can do is close the case as unfixable. (At least that is what they told me when I highlighted real product bugs.)
I would not be holding out any hope for a solution from Microsoft Level 3 Support. :(