Let’s try posting a pic for the first time on new system.
2 things now. First is that on mobile (chrome, android), the extra description text is really long so to get to the other topics it’s a lot of scrolling. Is there an option to hide that?
Second thing, doing this compose… The WineBerserkers banner at the top covers up the top of the compose window. I can’t get rid of this “similar to” thing. Is there a button to close and see the preview?
It looks like you might be in desktop view, which can behave a little strangely on a phone. Try switching to Mobile view (click the 3 bars menu, if it says Mobile, you’re working in Desktop)
Also, once you open one of those pinned topics, and scroll to the bottom, it should automatically unpin, so you won’t see it there next time. If for some reason that doesn’t happen, you can do it manually through the menu at the bottom of thentjread.