Best p4Ignore for Populating Perforce with UE4 Engine Source?

Are you combining these two code sources or just using one or the other? I’m attempting to add a UE5 source-built engine to P4V. Should the build and Intermediate Engine folders be added or excluded?

what are the scenarios that they should or shouldn’t be included? If only I am building the projects, are they fine to include? If multiple team members will be building the project, should they be excluded?

Thanks so much!