I generally agree. If you're not doing it for money you don't technically need most of these things. But if you see open source as more than “here's the code” some of them matter. Support will find you, via GitHub issues, emails, or DMs. Analytics is really important because it shows whether the software works for people besides you. Without money you usually do not have playtesters or a UX designer, so you get fewer useful bug reports. Frustrated users rarely take the time to write a detailed issue.
Have you looked at something like Latex or Typst? They come with their own layout engine, so potentially less tedious work like specifying exact positions.