Having a CV is important if you are applying for jobs that require a detailed summary of your academic and professional background and it would greatly enhance your chances of being considered for opportunities that you are qualified for.
Employers use CVs to evaluate candidates based on their qualifications, skills, and experiences. Without a CV, it would be difficult for them to determine if you are the right fit for the role.
A CV is more comprehensive and gives a detailed overview of who are as a person and a professional, and also includes other relevant information that make you stand out from all other applicants.