> I think the slider would be recognized as a toggle in its usual context of a settings screen by most people who have seen a settings screen before, but not that specific design for a toggle.

I've been using computers since the early 90s; we got our first home computer when I was four; I've used many different operating systems.

As a professional Web developer, it took me an embarrassingly long time to figure out what those slider widgets are supposed to mean. It's still very easy to get them wrong/confused (both as a user, and as the designer/dev making the form), e.g. when the affirmative state involves a negative setting, like "Mute" (does "on" mean "muted"; or does "on" refer to the audio, which I can use this to mute?)