@pseudonym58 I'm not navrinda either and I know you didn't ask me - but there are a few shortcuts that you may find useful on your Android phone 🙂
At the top of each discussion you'll see this bar:
When you click that, you'll see a new block where you can either go to the first post, last post or use the slider on left to go to the post you'd like to see:
It took me a little while to get used to it, but now I prefer it - sooo much easier to navigate than pages!