Edge Dev 111.0.1660.7 - Cannot Open PDFs in IE Mode

My colleagues and I have noticed that PDFs stopped displaying when in Edge IE Mode as of Edge Dev 111.0.1660.7 (Official build) dev (64-bit).  The PDF actually loads, and I can view the document properties by right-clicking, but the content is completely blank.  I used a simple, publicly available example from Lenovo's website...so that anyone else can try this.  (Yes, I know that Lenovo's website shouldn't be put into IE Mode...but this is just to prove that the issue occurs on any website that runs in IE Mode. :-D.)

Edge Dev Screenshot:

Edge Stable 109.0.1518.78 (Official build) (64-bit) works fine, as shown below:

Has anyone else noticed this?  (I'm expecting it to be on your internal applications that have not been updated yet to run in Edge Native and are currently running in IE Mode.)  It would be REALLY bad if this bug got into Edge Stable...