It’s impossible to predict which new multiplayer games will be successful and which ones won’t. It’s so risky for developers to even try making them nowadays. Even games that seem successful at first (like The Finals and XDefiant) struggle to maintain much interest over time.
Anyways, I like Overwatch but I’ve gotten bored with it over the past few years, so I’m potentially interested in Concord. I’ll keep an eye on it. (I was aware that there was a beta, but I thought it was pre-order only so I didn’t check it out)