"Getting Started" guide is missing a critical step?

The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/14/tutorial-createdb.html
Description:

Hello,

I'm new to postgres so following through the steps in "Chapter 1. Getting
Started".

I was surprised to see that the chapter goes directly from "1.2
Architectural Fundamentals" to "1.3 Creating a Database" with no explanation
of how to start a client application (ex: pgAdmin?) and how to connect to
the local server. In other words, section 1.3 starts off with instructions
for running the command "createdb mydb" but it's not clear where to run
it.

I think readers would benefit for an intermediate step between 1.2 and 1.3
that explains how to start the client software, how to connect to the server
and where to run commands.

Kind regards,
Uri G.