You can also enlarge the default font size similar to desktop browser. Can not do that on Chrome, Firefox and Safari. Reading this site on UC is much easier on my eyes.
The Accessibility section in the Firefox for Android settings also contains options for adapting pages to the system font size and overriding zoom-blocking. And there's the built-in Reader View which extracts and represents the text from supported pages.
Text reflow used to be standard. Does anyone know why Chrome and Firefox removed it?