Instead, I will focus on more objectively measurable aspects such as flexibility and ergonomics. You may be getting the most flexible reading experience, but you are getting the most ergonomic reading experience. You also have to put in up-front work to get a better experience, or rely on tools like Reader mode.

If that's what you prefer, that's fine. If you weren't aware, in most browsers you can access the menu bar and navigate to "View -> Page Style", and set it to "No Style".

Then you're free to add whatever styles you'd like on top. Meanwhile, the casual, less technical, non-designer user can still engage with the content in an accessible and easily parseable manner.