There is no registry in Linux so there can't be a registry editor.
Hardware panels and task managers do exist (and they come in more windows-like distros), they're just different to Windows ones. I do concede that hardware management in Windows is much easier.
Task manager for Windows absolutely blows though. It doesn't show real data, just estimates that sometimes are wildly wrong.
In a hand wavy way, yes. You are just editing the settings of one suite of software, not really an OS "registry". Closest to that in Linux is editing /etc, but even then, not all software is configured there.