Hey, you can switch back to the classic view. Go to Cursor Settings > Agents and turn off “Open Agents Window on Startup”. Then Cursor will open the usual Editor Window on launch.
You can also switch to the editor anytime:
Ctrl+Shift+NCmd+Shift+N on macOS
Command Palette > Open Editor Window
File > Open Editor Window
If the toggle isn’t there in settings, or it doesn’t stay off after you disable it, Ctrl+Shift+N and Command Palette will still work. Let me know if it doesn’t work.