(tested with Chrome Android toggling desktop site)
https://i.imgur.com/KHl2ko6.jpg
That's how it looks to me in desktop mode. Code textsize like half of normal textsize and linebreaks after sometimes just 1 word. That's hardly intentional styling and it looks completely fine in mobile mode.
I felt the need to disagree because a lot of these "font is too small" complaints seem to be advocating for people using larger font sizes in general. Which I would prefer not to see, default font sizes are already large enough
When looking at the site in mobile mode or desktop it does seem better. I do agree that many sites use font sizes that are too small these days though.
It's better than, say, Dan Luu's website or any other one that renounces CSS, so viewing it full screen on a large display turns paragraphs into single lines.