InZone is Sony's gaming brand, PlayStation is Sony's console and PlayStation Studios are their teams who create software for consoles, mobile and PCs. This particular event, as Nesh posted the marketing above, does say
PS5 so I feel Sony were setting expectations. The event didn't ignore games coming to PC as these was mentioned on titles coming to both platforms.
As I
mentioned above, for those who expected Sony to mention Ratchet & Clank releasing soon on PC, note that
Sony spent no time at July 2021's State of Play taking about Ghost of Tsushima coming to PS5 and that was also releasing the following month. ¯\_(ツ)_/¯