Polish regulators have expressed concerns over possible anti-competitive practices by digital video game platforms. The Office of Competition and Consumer Protection (UOKiK) may initiate proceedings based on the analysis of the collected data.
I think the issue is the same as Apple being anti-competitive about the AppStore. Sure, techically, both Steam and the PSN are platforms for selling games, but they’re each restricted to specific non-overlapping platforms (respictively PC and PlayStation) where there they have a (near for Steam, absolute for PSN) monopoly. Hence, anticompetitive behavior.
I think the issue is the same as Apple being anti-competitive about the AppStore. Sure, techically, both Steam and the PSN are platforms for selling games, but they’re each restricted to specific non-overlapping platforms (respictively PC and PlayStation) where there they have a (near for Steam, absolute for PSN) monopoly. Hence, anticompetitive behavior.