@SPS-DEV-22
It is the terminology that is throwing me! A Form is a specific control in PowerApps - it displays/edits/creates one record. So I am not sure if you are interchanging the term Form for App!?
If you are planning to show a list of information, then a Gallery is the control for that.
So, with that terminology - yes, again, you can create as many apps as you want to connect to the same datasource. Normally you would have a specific app for the list (in your case you have the customized app - what you see as customized forms) But, since you are talking about having a dashboard-like app, then this is no problem at all.
If you build this in a standalone Canvas PowerApp - then again, no problem. If you were to try to incorporate it into SharePoint directly (as an integration), then you can only have ONE app in SharePoint.
So - in summary - Only one SharePoint integrated app is allowed, but unlimited standalone canvas apps are allowed.
Hopefully I am addressing what you are asking.