Question: How do most people complain, in writing or by other methods?
Analysis

Do most people express their complaints in writing or in other ways? When answering this question, consider the diversity of modern communication methods, people may use both written and other methods to express dissatisfaction. This includes traditional written methods, modern digital methods, and verbal communication.

Synonyms
Try these synonyms instead of repeating the question:
  1. most people the majority of individuals
  2. complain express dissatisfaction
  3. in writing or by other methodsthrough written or various communication methods