There is no need to add it simply. The biggest difference between non-fresh graduates and fresh graduates is that when people change jobs, what they value is also your performance in this field after graduation and what you have learned. Who will look at your school days? When our company recruits non-fresh graduates, we only look at the four basic information on the resume, including work experience, education and a bunch of messy certificates, plus internship experience. You never watch school. You, a non-fresh graduate, are a little embarrassed to take things from school.

Besides, when you are interviewed or written, your resume will be useless. People will resent you writing trivial things on it. Many companies will ask you to fill out their application forms, and then decide whether to write or not according to the contents on the other party's form.