Webview2 is the name of the Windows component that go-webview2 wraps. It’s a little bit confusing, because go-webview2 also happens to export an interface compatible with webview/webview, which is another library (although not Go-specific.)

edit: if you’re wondering why Webview2 is webview2, the reason for that is because Webview2 is based off of Chromium Edge and webview from WinRT is based off of MSHTML Edge. And if you are wondering why not support that, I considered it, but it’s somewhat harder to do, because while Webview2 is mostly pure COM interfaces, WinRT Webview uses… WinRT. Which is a bit more complicated. Avoiding CGo for that would probably involve worse blackmagic, possibly requiring some assembler to mimic what’s going on in WinRT.

It's just called webview/webview[0]. The fact is a little obscured now because it's been used from so many other languages, but Go/C/C++ were the original targets.

[0]https://github.com/webview/webview