I haven’t used it extensively but they way I’ve seen it used it with the TTS button that stays on screen. You activate it and then highlight what you want read with a general selection box. The other method is activate it and just press play for it to read everything on screen. I’m not sure if it’ll autoscroll if you are using it for a long article on a webpage

Android had built-in tts under it’s accessibility settings. I’ve worked with virtually impaired people and they use that to negotiate the phone, read text messages, use apps, etc. Are you looking for specific features not available there?

Imagine showing this article title to someone from the great depression or even more recently a fire fighter who lived through 9-11…this time is wild