Overwatch is more dependent upon teamwork, ability usage, positioning, etc.

Cheating is endemic in BR and tactical shooter type games. I remember one f2p game was deleting 50,000 cheater accounts every month.

A key phrase being free to play.

If the developer's winning $20 per cheater detection, and puts in extra resources when there's more cheaters, the equilibrium ends up a lot better.

And even for free games, I could imagine different ways to tie a monetary stake in in exchange for skipping invasive anticheats.