Knockout City should be getting the PS5 and Xbox Series native versions soon as they have been rated by ESRB for both platforms.
Knockout City launched with no native current-generation console support but the developers did promise that it will arrive through future updates. It appears that the time for this update to launch is soon since they have been just rated by ESRB.
Here is the description of the ESRB rating.
This is a multiplayer dodgeball game in which players face off in brawl-like competitions against other teams. From a third-person perspective, players control human characters as they run around futuristic cities, grabbing whimsical balls (e.g., sniper ball, multi-ball, bomb) and throwing them at opposing players. Gameplay can be frenetic, with cries of pain, explosions, and slow-motion effects. Some knockouts depict players’ bodies flailing out of bounds when hit, though there are no deaths or serious injuries.
Here is the screenshot of the rating confirming it is for PS5 and Xbox Series.
Knockout City is available as part of EA Play while it also offers a free trial on all platforms. The game is available for PS4, PS5, Xbox One, Xbox Series, PC, and Nintendo Switch. It can be purchased for $19.99.