What is possible creating PWA in Ionic


I am thinking about taking my business to the next level by leveraging progressive web apps and offline first approach to app development.
I already have an E-learning website based on Wordpress, and I would like to make this site into a PWA with offline support.
I really don’t know if that will be possible using Ionic framework or if I have to create a brand new app from ground up.
If someone can mentor me and guide me on what to do, I’ll be grateful. I’m ready to learn.
I know this is not the typical kind of question you see on this forum, but I’m sorry if it offends anyone.
Thanks for the anticipated support.