Works great for me on Android, I use the plugin to hear texts in English and Spanish, very convenient. The add-on does not appear all the time on the page like other add-ons, which allows you to browse comfortably, for your needs, simply click on the icon of the add-on from the add-ons menu and a player appears at the bottom of the page, and this way you can read the whole page or mark where to start for the reader if you don't want the whole page, for me It's an improvement in quality of life =]

There are a few quirks e.g. it doesn't read last paragraph and the controls don't scale well with custom font size but it does actually work and is faster and doesn't leave out random stuff like Google's own Reading Mode.