The sea peoples likely came from around the Mediterranean, but primarily were Nuragic people from modern-day Sardinia
That’s one hypothesis for one component of the Sea Peoples. Like all the hypotheses, it’s very weakly evidenced - iirc correctly (from Eric Cline), in this case, there’s a possible philological link with the Egyptian exonym ‘Sherden’ and one possible representation of a nurhag.
Different set of people (although they both traveled on the sea).