My problem with the whole VR world, Firefox Reality included, is that it requires me to use stores, open accounts, and do all kind of stuff that seems to me unnecessary.
Firefox Reality includes support for WebVR, so you can use web based VR applications through the browser.
Part of the reason you might choose to install Firefox Reality on your VR headset is because it's important to you that developers of VR apps always have an option to use the web to share their apps, which will avoid forcing their users in the way you mention.
We've built a social VR application called Hubs (hubs.mozilla.com) to showcase the potential of web based VR applications.
Do I get it wrong?