There are actually some competetive pvp games that build in more complex mechanics and scoring systems that reward players for doing differing support roles, and more meaningfully give players on a team ways of communicating and coordinating.

These games are not widely popular though, and they're kind of dying out... they're usually some kind of flavor of tactical shooter or war sim, or particularly well designed mmos.

I personally don't know why someone would play a team vs team game that has no real way to actually coordinate and incentivize team work, that's known for having a toxic community, oh wait yes I do, MTX and peer pressure and dark patterns are extremely effective.