I truly wish that browsers wouldn't try to integrate every technology under the sun. If I want to play a game, it's enough to download it through the browser and launch it as a separate process. Same for VR (especially if it requires libraries from a Facebook-owned company) and pretty much anything else that can't pass through a HTML proxy.
Seriously, how many security flaws could've been avoided if there were no plugins or ActiveX browsers? And, really, there wouldn't be any significant loss of functionality.