A little confused using existing PWA


I’ve stumbled across Capacitor and a little confused.
We have a number of existing membership-related websites which are also PWAs.

We’d love to get them into the various app stores

Can Capacitor be used to create the needed apps and seamlessly link back to the websites for data updates? Can Capacitor also be used for the creation of in-app purchases that pass the IPN (or their similar term) back to the linked website for triggering a membership upgrade?

Sorry if these are total newbie questions

Did you ever found an answer?