Sorry if this has been posted before, but I had to Google this so much I decided to post here.
Step 1:
Inside the Editor, download plugin named “Editor Scripting Utilities”, then restart your Editor.
Step 2:
Create a BP with w/e name and location (mine is “RunCommands”) by right-clicking on the Content Browser and selecting “Editor Utilities” > “Editor Utilities Blueprint”.
Parent class is “EditorUtilityObject”.
Step 3:
“Event Run” must be overridden. After you create the blueprint mouse over “Functions” to the left, on the BP editor, and click “Override” > “Run”
Step 4:
Mirror this blueprint (notes after image):
NOTE: “Get Editor World” is enabled by the plugin that you should’ve downloaded on first step.
Step 5:
Follow after step 4 on this official UE document: Running Blueprints at Unreal Editor Startup | Unreal Engine 5.3 Documentation
Step 6:
If everything was done correctly, your viewport should have the FPS on and the debug message in blue:
Hope this helps other people. If any steps are unclear let me know and I’ll edit this post and go into more detail.
Cheers!