Virtual Webbrowser

Hello.
I found some research on the world exist some type a virtual webbrowser. Anyone have some experience with that type virtual webbrowser?

No idea what that sort of thing is. Sorry.

I mean if virtual webbrowser you can use things what not working on linux but they working on windows operating system. Propably if i created some vm with windows but what i know if I clone hard disk windows it will be not working correctly because the peripherals hardware are diffrents what are in vm settings. I am wondering how people playing on virtual machine on linux in qemu-kvm or virtualbox.
How they recognize a hardware or this is just cpu with integrated graphic card?