I would like the option to concede a match in a single step on MTG Arena. Currently, in the desktop application, you have to select concede, and then wait for the sideboarding screen to load before you can select concede again. On the mobile app, it is even worse, because you have to wait for your opponent to finish sideboarding, before you can select concede again. When I get tired of playing against decks like Vivi, cauldron or invoke despair or whichever deck is currently dominating standard, I simply wish to allow them to win the match and move on to something different. I would also like the ability to concede during sideboarding, just like on the desktop app, so that if I get part way through side boarding and decide I'm done with the match I can just leave and and go on to a different match