The UI change, especially on mobile, is incredibly difficult to make sense of and utilize compared to the previous UI. I understand as a free to play game that you needed to move the Store to a more prominent position, that’s fine but the other changes to the UI have now placed a usability wall between the user and the game. Where before it was relatively simple to work out how to go about mass salvaging items and gear, that is no longer apparent and in some cases, seemingly not possible. Additionally, stuffing the “Story” into the Battles tab, while still having a Story tab, seems like a redundancy that isn’t needed.
One of the first five rules I was told while working in games was to play the game. It was an important way to discern if there were issues introduced that could be avoided. I don’t see how anyone at your studio could have played the previous UI and then the new UI and thought it was an actual improvement. Leave the store in the front, that’s fine - as a free to play game, it even makes sense - just revert the other changes so that the user experience is enjoyable enough to get us to come back. Right now the UI makes the user experience a turn off.