This is a discussion about Docker, which is a complex terminal-based containerization system. This is not a program that is typically used by the average user. Docker’s complexity does not imply that Linux requires this kind of set up to use as a normal desktop. This is usually server software. Docker is also available on Windows and MacOS, and is partnered with Microsoft (you know, the company that makes Windows? The desktop OS with the highest market share?). Are you going to complain about how Windows will never reach mass adoption because users are able to install complex tools that require a steep learning curve to use? You can install Docker on Windows and use the same commands and configs, so do you believe that Windows suffers this same problem?

Before you point out the start of that comment with the “Linux mentality” stuff, while some of that is certainly true, you can now do everything an average user needs to do in an intuitive GUI, just like Windows (better in many cases, actually). Half the listed commands (making directories and files) can be done in the file manager just like Windows, normal apps can be managed in app stores, and the rest of it is docker specific, which is (again), server-oriented software. I’m not a fan of their mentality about how things work in Linux, because it’s very much an old mentality that doesn’t account for the immense amount of change that has happened in the past decade to make Linux more accessible.

I don’t understand why people come to the Linux communities to complain that Linux is “too hard” or “too complex” to be usable. If you don’t have an actual interest in Linux, find another community. If you want a simple experience, use a simple distro that’s meant to be easy to use, and use software that is easy to use.