Not a big ones but some what I’ve noticed. 
On mobile if I open a user card on frequent users then the user card backdrop can be on the frequent users modal? Now if I click outside of the user card it close the frequent users modal too. It would be great to close only user card.
The links modal seems missing some padding on mobile.
The summary header on mobile isn’t seems heading.
I’ve also notice on desktop when I try to Resummarize the topic the button not always working maybe while the summary modal open? I am not sure because this was pretty rare but last time I clicked the Resummarize button and nothing happened then I clicked outside and closed the modal and try again…