Can I live in Spain as a non resident?｜. Once that period ends, and you have not obtained any of the visas that can be applied for in Spain (e.g. the student visa or the entrepreneur visa), you will need to go back to your country.90 days is the maximum amount of time you can legally live in Spain without getting residency

Could you please elaborate on the possibility of residing in Spain as a non-resident? It's mentioned that after a certain period, if one hasn't obtained any visas applicable in Spain like the student or entrepreneur visas, returning to the home country becomes necessary. Could you clarify what this period specifically refers to? Additionally, is there a way to extend this 90-day limit for legal residence in Spain without acquiring residency status? It would be helpful to know the ins and outs of this matter.