I was not sure before answering but I read this post and it says in an answer to the question:

"Adding a plugin is one of the changes that require the generation of a new build of the app. You can read more in detail about them here, but in any case, I'll leave you with a screenshot of the documentation list of the changes that require the user to install a new build: "

https://www.outsystems.com/forums/discussion/74798/camera-plugin-is-unavailable/

There is also this one just in case about Idp

https://www.outsystems.com/forums/discussion/62947/idp-mobile-progressive-web-apps-pwa/

And I also saw these answers

https://www.outsystems.com/forums/discussion/58245/is-idpmobile-compatilbe-with-inappbrowserevents-version-1-0-5/#Post304800

Regards,

Márcio

Thank you for quick response. 

I've uninstalled & reinstall the app on my phone as PWA, same error

I'm also testing using Chrome using the "Preview in Devices"

I cleared my browser cache from the last 24 hours (this is how I usually reinstall the app) and same error

In the end, I concluded that this would never work with PWA

So we used the React Idp with our mobile PWA. We did have a hiccup where SSO was not working, and we had to ensure Okta's Content Security Policy was set to allow it to be rendered in our development environment