It will need to do something very fresh if it wants to compete.
Valorant felt extremely fresh and slick compared to both CSGO and Overwatch while fitting nicely inbetween. They brought innovation and UX improvements to the format that even CSGO ended up copying after it had been resting on it's laurels for too long.
I certainly think Deadlocks ui is unfinished, but the gameplay is certainly something that hasn't been done super well.
I don't love deadlock yet but haven't played it much. Plus, my opinion means nothing, I thought Artifact was a great game.
Deadlock is more like a moba shooter.
(That’s not a bad thing but first-person MOBAs have fallen from favor a bit… which I suppose does leave a market gap.)