Ghostwrite hasn't even released, man. Deathloop, again, released 1 year later. Not a brand new release.
And why would they charge extra for Series versions? Sony charges an additional $10 for PS5-exclusive features (Tempest audio, haptic feedback, adaptive triggers, etc.). Xbox Series consoles have none of those features. What would they charge the extra $10 for? 60 FPS?
PS also didn't charge any $ for 60 FPS updates. TLOU 2, God of War, Days Gone, Horizon Zero Dawn, Ghost of Tsushima, etc: all those games got the free 60 FPS update.
It's quite simple: Xbox didn't release any new next-gen game. And they have raised prices before those games are slated to launch. All the complaints against Sony don't make any sense now.
Most importantly, those $70 versions won't have any of the features that Sony offers for their PS5 versions because the console doesn't support those features. Xbox will just be charging $10 for higher res and FPS.