Do coordinating conjunctions require a comma?

An independent clause can stand alone as a complete sentence because it has a subject and a verb and expresses a complete thought. A dependent clause does not express a complete thought and needs an independent clause to make sense. Coordinating conjunctions connect independent clauses only.
Example:

The main function of coordinating conjunctions is to join sentence clauses of equal importance, be it words, phrases, or independent clauses. They help maintain the balance in a sentence and make the structure smoother and more coherent. For example- She cleaned the room and arranged the books.

Yes, but use them sparingly and mainly for emphasis or a conversational tone.
Example: But I didn't give up.

Use a comma before a coordinating conjunction when it connects two independent clauses.
Example: I wanted to go for a walk, but it started raining.

There are seven primary coordinating conjunctions: for, and, nor, but, or, yet, so.