I don't know Go, but looking at the code it doesn't look like it handles sites that are rendered on the client, if so it has limited utility in today's web.
Of course it does not, for that you need a headless browser ( = Chrome Headless).
Neither Python/Go/Java/Rust/C/C++/D/Ruby/C#/F#/... nor any other language (not even Node afaik, but Puppeteer handles that) can handle Javascript rendered sites.
Neither Python/Go/Java/Rust/C/C++/D/Ruby/C#/F#/... nor any other language (not even Node afaik, but Puppeteer handles that) can handle Javascript rendered sites.