SUMMARY
Two parts here.  The first one turns out to be cosmetic, but I mmention it only because I initially thought it was part of the second issue. 

First Part:
When using the Open file dialog, the cursor is placed in the name field which has a drop down menu feature.
If you down arrow inadevertantly which selects one (in my case a previous shell script), you can ignore it and select a different file, but there is this undesired effect or artifact of the terminal icon in the name field that doesn't go away unless you close the dialog and start over. Even if I select a .jpg it looks like I'm going to execute a .jpg in a terminal.  Kate actually did open the .jpg showing binary data as expected, but the artifact is cosmetically confusing/distracting.  It would be cool if this was an easy add-on fix, but not my main concern.

Second Part (a real issue):
If you select a folder and view properties (Alt+Enter or select from shortcut menu) in the File Open dialog box, the effect looks something like the Open dialog box is trying to execute the call for properties recursivley in a new dialog box or something as each dialog closes immediately only showing a glimps of a corner.  This only happens when trying to view properties of directories in the Open file dialog box.  It works as expected for files.

STEPS TO REPRODUCE
1.  Select Open... (Ctrl+O or from the File menu)
2.  Select a directory
3.  Press Alt+Enter (or select Properties from the shortcut menu)

OBSERVED RESULT
An exquisite cascade of undecipherable message boxes opening and closing immediately.  Only the lower left corner of the box is rendered as they open and then close in a blaze of fury.  Then you are returned to where you were before you selected Open... 

EXPECTED RESULT
A dialog box appears with the properties of the directory.  This should work on directories like it does with files.

SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 42
KDE Plasma Version: 6.4.4
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.1
Kernel Version: 6.15.9-201.fc42.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 4 × Intel® Core™ i5-6600 CPU @ 3.30GHz
Memory: 16 GiB of RAM (15.5 GiB usable)
Graphics Processor: Intel® HD Graphics 530

ADDITIONAL INFORMATION
It struck me as odd that the terminal icon in the name field does not go away even when selecting an entirely different file type.  Again, this assumes you've inadvertantly selected from the drop down first.  I suppose each of these observations could warrant individual issues, but my concern is more with the properties of directories inside the Open dialog.  I only mention the icon in the name field because I thought they might be tied together.  It is clear that the issue with the directory properties is still present for me regardless of whether or not I previously selected an item from the from down.