With the sunset and removal of cloud simulators this last paragraph needs updating - I think just removing remote simulators and from the last sentence suffices, although the for real backends is the arguably not needed and maybe it even works for fake backends, not sure.
As for the noise introduced by real devices (or simulated noise models), it could be tackled through a wide variety of error mitigation techniques. The Qiskit Runtime Primitives have enabled error mitigation through the resilience_level option. This option is currently available for remote simulators and real backends accessed via the Runtime Primitives, you can consult this documentation for further information.
With the sunset and removal of cloud simulators this last paragraph needs updating - I think just removing
remote simulators andfrom the last sentence suffices, although the for real backends is the arguably not needed and maybe it even works for fake backends, not sure.