Great article Funmilayo E. Olaiya.
I have a contrary view on express. First, it is a library, albeit a great one, with very basic features. It is a good first library. Once a dev has gotten the basics of express, it's better to move to a more mature framework like AdonisJS or NestJS. These frameworks have an inherent structure that teaches a growing developer some best practices to code organization.
Once more, great article. Thank you for sharing your knowledge.