I just discovered a rather useful function for longer topics like e.g. this one:
which has more than 800 posts.
When you open such a topic, you get the first post.
If you want to jump to the last (most recent) post then have a look at the forum internal scroll bar on the right of the topic which tells you when the last post was editted.
Click on that number and you jump to the most recent post.
If you want to return to the first post, click on the data on top of the forum internal scroll bar.
I found this useful.