Is there any way to change the default level you load into, when you load into the project - when you launch the game?
If you go to Project Settings and search “map”, these settings come up:
“Editor Startup Map” is the map that is opened when you start the editor, and “Game Default Map” is the default map that’s launched in the packaged game.
Hope this helps!
Just to add to that, you can also change the editor settings to always open the last level you worked on:
Editor Preferences → General - Loading & Saving → Load Level at Startup.
Select “Last Opened”.
You can also set them in the config file in your project config folder. DefaultEngine.ini is the file, under the section.