Usually there's a huge title header that takes up two-thirds of the vertical length of your viewport, and there's no way to enumerate the content of the site, because all you get are vague links ("your municipality", "services for you", "house and environment"). In the end you have to use Google to search for anything, which can land you to an old, unindexed page that is no longer the current one for whatever you were looking for. This is especially true because another thing with modern websites is that URLs tend to be meaningless or short-lived, because sites are either "single page" or served by a CMS that changes every six months.
Finally, the concept of vertical scrolling is broken by useless, unusable tricks such as endless scroll or, for front pages, something fancier that makes the site look like a children's pop-up book (all of this coming from the same people who in the 90s told us that <blink> was a crime against humanity).
Maybe it's because of the "mobile-first" design of modern websites, but I don't think so, because typically the mobile version of said sites is even less functional, with everything that can't be easily implemented as a scrollable sequence of short text sentences being painful to use or just missing.
Copyright law gives an author a monopoly over his or her work. You can only copy that work either with the author's permission OR for a reason that qualifies as "fair use". I'm convinced that creating derivative works that compete commercially with those of the original author cannot qualify as fair use. Then again, IANAL.
"Truth never comes into the world but like a bastard, to the ignominy of him that brought her birth." -- Milton