OK I’m stuck on frontend level and I don’t know how to get out of it. I was creating a timetable and it led me here. I don’t know what to do
I am not normally one to say where you should post what, but in this case, you may find it more helpful to you to head to the PC Editor Discussion, rather than here, since everyone there will have more experience with the editor: https://forums.dovetailgames.com/forums/pc-editor-discussion/ For now, though, we'll have to wait for someone to read this and try and help.
Not quite sure how you did end up there, but if the Editor opened the ingame Frontend tab, you could try to close it by clicking on the entry "Session Frontend" under Window -> Developer Tools -> Session Frontend. Otherwise it should be a standalone application which you should be able to close independently of the Editor. Consider reading this article for more information about the FrontendLevel: https://docs.unrealengine.com/4.26/en-US/SharingAndReleasing/Deployment/UnrealFrontend/
