In the Aqua image the big bright blue scrollbars stand out far, far more than the content. That sucks, honestly. So does the percentage of the screen dedicated to their presence.

Also, horizontal scrollbars suck. One thing later versions of Finder did well was adjust columns to minimize the presence of them.

We just don't need UI that big anymore. These days our cursors are much more accurate, from the magical Mac trackpad to high DPI optical mice, and we're 40+ years into GUIs so the limited number of people who opt-in to a full computing experience can already be expected to know the basics.

Yes Tahoe sucks, but going back to Aqua or classic MacOS would also suck, just in a different direction. If you actually spend time using classic MacOS and Aqua these days, man is it frustrating to get basic things done. Everything is so slow and you're constantly resizing windows to see whats in them. I own several Macs from the 80s-00s and they are really in need of many quality of life updates that later MacOS revs added. On a modern Mac, enabling 'show scrollbars' gets you to a pretty optimal Finder experience, minus all the stupid Mac bugs and Tahoe nonsense like this article points out.