I have been added to a project as an editor,
can I check who actually started this project ?
I had a look at https://firebase.google.com/docs/remote-config/templates but it didn't help.
If you go to the Users and Permissions panel in the Firebase console, you can find the owner(s) of the project. While those may not necessarily be the creator, they are the people that can at this moment do most to manager the project.