It'll be interesting to revisit the deltas between launch titles and actual next gen titles in a few years.
I'm thinking that launch window (perhaps even the first 12 months) won't be the best for showing off XSX. MS are coming into this with their dev kits and development environment well behind Sony. Spring / Summer 2020 is too late to integrate all the custom features into multi-year games development.
I could see many (most?) launch window games not using DirectStorage (legacy mode is fast enough for cross gen), not using SFS and loading entire mips (they have enough memory to skip it), and only a handful of titles will use VRS if they're in the minority that have been built to support it via Direct X on Nvidia cards (and Gears Tactics is only Tier 1, which is sometimes not so impressive). Even RT is coming after PS5 as a patch for some games.
Meanwhile, MS have changed development environments from Xbox specific to more general one which some developers are fine with, but others don't know and so understandably dislike, particularly at a time like this.
Even if Sony don't have features like VRS and SFS and significantly accelerated inference stuff, if MS aren't actually showing it because games aren't using it yet, to customers it's understandably like that performance doesn't exist. Meanwhile, Sony may be more polished, showing a more next gen look (e.g. RT in Spiderman), and benefiting from probably the highest GPU boosting games of the generation, and with their full SSD experience against a probably rather more limited use of "Velocity Architecture".
Perhaps I'm being a little pessimistic for XSX in its early days, but there's a lot be said for strong performance right out of the box. Having a nitro attachment for your racing car must be great, but less so if they only fit it during your first pit stop so you can't use if off the grid.
