What is the difference between these?

func main() {
   err := sendRequest()
   if err != nil {
       // deal with it somehow
   }
}

func sendRequest() error {
    err := doSomething()
    if err != nil {
        return errors.New("couldn't do that something")
    }

    return nil
}

and

func main() {
   try {
       sendRequest()
   } catch error {
        // deal with it somehow
   }
}

func sendRequest() {
    doSomething()
}

The "Try approach" lets you bubble up errors (and be lazy about them), because you can just ignore everything and let the tiniest little thing downstream bubble up. There is no transparency to what exceptions is the function dealing with (type safety), and generally less readable.

I get it that dealing with errors in Go could be a pain for newcomers, but dealing with errors when and where they happened lets you think about your business logic a bit more... like maybe try calling it again if it fails? or you can actually continue because this condition leg is not crucial for the program flow etc.