There is a built-in pre-render feature you can turn on for the app. We turned it on, waited for a few days and then tried to test if the pages are pre-rendered, but it looks like they’re not. I’m not sure what information else I can provide, please let me know if you need to know anything specifically.
I’m afraid this is not how the pre-rendered page looks like. It seems like some of JS being running. From what I understand, pre-rendered page si not supposed to run any JS on client end and be a pure HTML.