When you have a very long discussion in a group, clicking on that group only takes you to the first page of posts.
If there is more than one page of posts, it could be a bit confusing as the text you’d need to click to take you to subsequent pages it pretty small. It could lead people to think that there were no new posts.
Anyway, a minor suggestion is that you increase the size of that text somewhat so it’s a little more noticeable.
This is clearly not urgent but I thought I’d suggest it nonetheless.