@Zanna Well, that was what I asked in my question: a website which mentions the packages that are installed. So, there's nothing wrong if it's a link-only answer in this case. Am I right?
@Zanna "I want to know all software that comes pre-installed (from a website like packages.ubuntu.com) without installing Ubuntu Desktop OS in my device."
I am not sure about the technical accuracy of the answer. Can you please let me know if the answer is true?