Different setups will come with vastly differing requirements for their backends and frontends. So, depending on how your project works, what tech-stack is bei

Different setups will come with vastly differing requirements for their backends and frontends. So, depending on how your project works, what tech-stack is being used etc., it might be that either backend OR frontend is "easier" for that one specific case. But I don't think you can generalize that. In general, backend is definitely different - and comes with a different set of difficulties. But I really don't feel confident declaring it harder or easier than frontend overall.