KRPano is a 360 tour-building tool with a very broad feature set. It does require coding – or at least editing XML files – to achieve many things, but creating a Meta Quest-ready tour with navigation links between scenes can be done almost entirely automatically using the KRPano Tools app. This is used to generate tours and to add navigation elements to existing tours; it is a drag-and-drop process.
One big difference with virtual tours viewed in headsets rather than on desktops is the lack of ‘skin’ support. The skin is a graphic overlay that is used for control buttons, branding, maps and so on, but this doesn’t currently appear in headsets; triggering the VR button and stepping into a fully immersive view will remove any skin elements from the experience. Because of this, enhancement plans should be based on adding hotspot elements.
There is more that can be done, including adding video and graphic hotspots with VR-aware actions. To do this kind of work than this you will need a text editor such as BBEdit (for macOS), or Sublime Text 3 or Typora (for Windows) to edit the XML files that KRPano Tools generates. Notepad in Windows could be used in a pinch. You’ll also need to refer to KRPano's online documentation for details and examples.