Are there any modern Arabic books or writers that make extensive use of a Levantine dialect (such as Jordanian Ammiyah)? I'm thinking if there are, they would be fictional works, such as novels which portray the characters speaking in dialect as opposed to Modern Standard Arabic (MSA), as one would typically read in the newspaper/speak at a job interview. I'm not interested in material that is exclusively online, such as blogs, tweets, or other forms of social media.
I have been unable to find any studies that have analyzed the extent to which dialectical Arabic is written in popular Arabic literature across the Arab world in general, and this might thus be a question that only someone acquainted with modern Arabic literature would be able to address based on their own personal experience. Despite the fact that MSA--which is spoken in governments, in the news media, and in professional settings--can be understood by more or less everybody in the Arabic-speaking world from Morocco to Qatar, it is never spoken natively, and in fact is only categorized as a "second language" (even for all Arabic speakers) that is learnt in school (see under "language use": https://www.ethnologue.com/language/arb).