"welcome to IT world" is just dismissive and needlessly aggravating. Just because systems can break doesn’t mean we should throw up our hands and accept the terrible state Debian package management is in. Debian-style package management has specific architectural issues, combined with maintainers writing poor package scripts, that make breakage seem far more common than it should be.
I asked you to be very specific. And you refused. You are criticizing "apt" for "specific architectural issues" but it is still very, very vague. Once again - be specific please. Can you? What exactly are the "specific architectural issues" ?
If you worked for a politician, you would look like hired by PR agency to throw a sh..t on someone else. I believe (and hope) you are not ?