Earlier quoted context omitted.
My intuition is that Golang people dislike frameworks.
So they roll their own stuff each time they do a web app?
The standard library defines some decent interfaces already around HTTP handling and SQL calls. Most libraries are built to integrate with them. Then interfaces like io.Reader and io.Writer mean you can pretty much use anything to read requests and write responses.
This means that usually you're composing libraries and some application code together, rather than building everything on top of some jack of all trades framework. You get to choose the best tool for each job.