Death Stranding is a weird case. They use Sony's proprietary Decima engine which Guerrilla maintains, but it's not a PlayStation IP completely. SIE is credited but Sony mainly funded the game, but it's still 100% Kojima's. On the PC port 505 Games published it, as well as did optimizations. It's why Death Stranding ran like a dream when it first launched on PC while Horizon Zero Dawn which used the same engine ran terribly, since a different team did that port and didn't have the same optimizations. Hell I can go on about how much of a disaster HZD's port was that Guerilla had to pause development on Horizon Forbidden West just to fix that broken port they had nothing to do with. That was such a misfire that Sony bought Nixxes to make sure what happened with Horizon never happened again. (If only The Last of Us had the same treatment...)
So does Death Stranding coming to Mac mean the other PlayStation IPs are also coming? No, it doesn't. Ultimately it's up to Sony to give the green light to do Mac ports or not, but none of their studios, even Nixxes, have any experience with macOS. Hell none of them have any experience with PC either which is why they contract the ports out when Nixxes is busy. But hey, maybe if you all ask the PlayStation Studio developers nicely maybe they'll convince Sony to contract Feral Interactive to do ports of stuff like Spider-Man. After all it was the PS Studio developers who pushed for PC ports to be a thing to begin with. Plus, God of War director Cory Barlog is a big Mac user