Hi @Stevenmbiz and @TFX_Mech_Guy. There is a Long thread High resolution display support for editor - Unreal Engine / Feedback for Unreal Engine team - Unreal Engine Forums
This goes into so much detail. I think the last post may be what you are looking for
Update:- Here is my answer for UE5 EA2 and Win 10.
For Windows 10 Unreal 5 EA 2 Source Version
built with Visual Studio 2019 Community version 16.10.. onwards
In file explorer right click on UnrealEditor.exe.
Send Short cut to desktop. Right-click the shortcut
Replace the target line with You need a single quote at beginning of the line and a single quote at the end.
After the end quote put a space and type -enablehighdpi.
“C:\Users\Owner\source\repos\ue50EA\Engine\Binaries\Win64\UnrealEditor.exe” -enablehighdpi
Click the Apply button to save this, then the OK button.
Now double click the shortcut.
In the Games, section Select the First Person Shooter to give Project name like EnableHighDpi.
Click ok. ALL the Shaders should re-compile >4096.
The Project will open. My GTX card is a 2GB Dedicated so UE5 is already complaining about the lack of GPU Video Memory.
It works on my Ultra HD display, but the graphics card is struggling now all >10,000 shaders have been re-compiled.
If it still does not work try Editor Preferences → General → User Interface → Enable High DPI support. Switch it on (tick), try the project again. Turn off then turn on.
NOTE:- When you import a UE4 project to UE5 this is OFF by default! unless set in a UE4 project
Have you ever used Editor Preferences → Level Editor → Play → Game Viewport Settings
In New View Port Settings-> Drop down Common Settings → TV and set 4K Ultra HD 3480 x 2160 or even 4K Digital Cinema 4096 x 2160.
When you click Play, probably break your graphics card 