Dissolve edges by geometry nodes

Does anyone know how could it be done in geometry nodes?

Any reference images or videos? Like thats pretty general and sounds like the split faces operator…

I mean when you select an edge and hit ctrl+X in edit mode with all check-boxes unchecked . Can I perform something likr that in geonodes? Or maybe “Tris to quads” command?

I meant when you select diagonal edge on a triangulated former quad , hit Ctrl+X and it turns back to true quad . Is a video still necessary?

Convert a tris object into a quad face. Well, not sure

Maybe something like this: https://blender.stackexchange.com/questions/279887/fill-with-quads-in-geometry-nodes