OW2 > Rivals, Rivals has less agenda'ed character design but its overall not as comprehensive of quality of a game as OW. If OW just started adopting the international mindset w/ character design and story telling instead of market pandering in its local market it would have much stronger presense globally.
Blizzard is not ready to concede hero shooter supremacy to Marvel Rivals. The recent Overwatch 2 update makes matches less predictable and more rewarding. How have these changes impacted the game's Steam rating and player counts?