Sony in the last few years made a "State of play" exclusively for every of their major releases, where they showed the game quite deeply. I would assume they will do the same with God of War.
This deep dive is usually around a month before release, but there were exceptions (e.g. "Horizon"), which was about a year before release.
Maybe a strange logic, but Santa Monica a few days ago made an Aprils fools joke about delaying the game to 2023. They would not make a joke like this if delaying the game is really in the books. In that jokes they also wrote that the console version is pretty much ready (delay only to release PC version on same day), but it was an aprils fool joke so I would take any information out of it with a large pile of salt. Especially the day 1 PC version was just a detail to trigger us poor PS fans