Ah. That's more of an accessibility issue than an advertising issue, then. I imagine even without ads a bunch of modern websites expecting higher resolutions and smaller scaling factors will look cramped.

I was not kidding before, if you have vision problems that don't play well with desktop views, mobile versions of websites tend to be a LOT friendlier to large text sizes. Have you tried setting your browser to a vertical window and calling up the phone version? On Firefox at least you can set the resolution of the phone you're emulating and zoom it all the way up. The setting is buried in the developer tools, but there are tons of tutorials out there (TLDR, press F12, look for the button that looks like a tablet/phone).