Um, are you sure? You’re free to make your windows wider than 80 columns, of course, but I kind of doubt your style ever would lead you to write something that looks like this:
You might not be thinking about how your style impacts your choice of nesting, but how could you start writing that and not go, “Whoa, whoa, this is unusable. I can’t see anything. Let’s pull some of it out into a method.”?
Of course you should be free to style things how it suits you; I just don’t think the idea that the choice is without consequence is correct. It might be worth the tradeoff, or that might not even be a tradeoff for you because you’d never indent that deeply that anyway (for other reasons). But it might be a tradeoff for someone (e.g. me), and if it is for someone, that means that it is, to some extent, style-dependent whether it’s desirable.
(Also, if your editor can show really robust indentation guides, are you sure that is not clearer than more spaces? E.g. if you use VS Code, have you tried both the indent-rainbow extension and highlightActiveIndentGuide on?)