I am just glad I am kinda immune to bad framerates. Never had any issues with Bloodborne or other games that supposedly had shit performance.
Bloodborne was perceptible to me and occasionally annoying, but I still played and beat it 5 times and Platinumed it. The odd framepacing of that game did sometimes make me feel like it wasn't properly handling my dodges and gun parties from time to time, though, and that could at times result in me feeling like technical hiccups were to blame rather than my skill. Still, I love that game.
Sekiro seems to aim for 60fps and reports seem all over in its ability to achieve that. Bloodborne had a 30fps lock with very occasional dips below and frequent framepacing oddities.
I tend to feel like wildly fluctuating framerate that's missing an intended upper target tends to feel much more disruptive to frame times and control response than a relatively locked rate with occasional judder.
And Sekiro's design seems to try and use its higher framerate target to increase the precision of its even more action oriented gameplay, and I do worry that it will feel like the technical performance is undermining the experience even worse.
Actual framerate analysis is badly needed.
I won't pass on Sekiro entirely if console performance is lackluster, but it will be considerable time before I have a gaming PC to play on.