It really is amazing how many games showed off in that Presentation are multiplats. Other then Helldivers 2, The Talos Principle II, Ghostrunner II, Immortals of Aveum, Neva, The Plucky Squire, Towers of Aghasba, Ultros, Arizona Sunshine 2, and the new Cat Quest game all already have Steam pages up.
IGN has confirmed that GranBlue Fantasy Relink and Assassin's Creed Mirage are coming to PC (the latter of which Microsoft has also confirmed is coming to Xbox).
Teardown and Tower of Fantasy are already available on Steam.
Microsoft have already confirmed that Metal Gear Solid Delta, Dragons Dogma II, Alan Wake II, and Marathon are coming to Xbox, so they are also most likely coming to PC (Marathon's twitter account has already confirmed that the game is coming to PC).
There were, what, three or four games produced by Playstation Studios developers? One of them we already know is coming to PC. Pretty much all of them except Spiderman only had CGI trailers to show and they were nothing to write home about, and even Spiderman II wasn't all that exciting (also, going by history, its probably getting a PC port eventually). This entire presentation was an embarrassment for Sony.