Frequently asked questions (FAQs) are a self-service format that provides answers to common queries and problems with the hope that customers can get rapid solutions to their problems.
If you have a limited number of topics you cover in self-service, then FAQs are often a good fit. If your content spans a lot of complex information, though, you may want to look at other formats for your self-service content. Having too many FAQs is stressful for the reader as it adds extra friction in them finding the relevant answer at the quickest opportunity.
You may want to read some best practices on FAQ designs: