Not necessarily a button, just came to mind first.
Noticed a moment ago after blocking a community I’m not interested in seeing, there was no quick and easy way to get to the top menu to refresh the feed. A button or pull down method to quickly return to the top of a feed, or just show the top bar quickly would be nice!
Mine only says open in browser and Nerd stuff when I just tested on the lemmy.ml feed
Edit: If I’m on the home and click the lemmy.ml logo in the tab to view the instance then there is no scroll to top option, but if I click all instead then there is the option to scroll to top.