I have been using Teamdesk in minimized windows and on mobile browsers, the responsive layout is overall excellent except for this tiny little issue that's been bugging me quite a bit -- that is the Back button being collapsed with other misc buttons.
Seems to me that such a basic and regularly used function should have its prominent place instead of being tucked away -- which isn't ergonomic if you ask me.
I hope you consider this as an area for improvement.