Hey @iamkheme, thanks for waiting and for the detailed writeup and video. 
A couple of updates:
utils.openApp()on public multi-page apps: you're right, this is a bug on our end. I've filed a ticket with our engineering team to get it fixed. For now, please continue usingutils.openUrl()as the workaround.- The loading spinner: this is a separate issue, and we're actively looking into it. It looks tied to a browser performance condition. We're tracking it here if you want to follow along!
I'll keep this thread posted as both progress. Let me know if anything else comes up in the meantime!