whenever i encounter a blog or website that i find hard to read, i usually open up the dev tools and do the following (taken from Matej's blog):

    1. limit the text's container to `80ch`
    2. set line height to `1.5`
    3. (optional) change the document's root text size to `112%`

this makes any page 99% of the time much easier to read.

(i've never liked my browser's "reading mode", so i don't use it)