From a hardware perspective, it's true in both cases. If MS had a studio as technically brilliant as Naughty Dog (and no Series S), we'd see more of a difference between Series X and PS5.
Lol. As if ND programmers are exclusive to Sony and not journeyman that sell to the highest bidder, specially considering the turnover at ND. As if only Sony exclusives punch beyond the Series, and not also third-party games (big or small) that have had better performance on the PS5 on a great number of titles, and continue to do so and be the case.
The PS5 is the better, all around, engineered console to run games, it's as simple as that. It's not dragged down by "tools", poorly engineered hardware overhead and/or bottlenecks. A single number is not power - a machine is the sum of its parts. However, sheep who are supposed to fall for marketing slogans and simple patterns are supposed to believe the fairy tale - it's the whole intent - and it clearly works, case in point your post. Reality has shown different and it will always show different.
The man is Team Green through and through push comes to shove. It's not a nuanced answer out of someone of his stature and knowledge. It's clear cut agenda favoritism of an old war dog with a history of such.
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As for this... I hope the very hardcore Valve fans start to notice, and work in their minds having a happy family co-existence with their Xbox brethren under the Microsoft banner. One big happy family. Besides it's not like the two fanbases don't enjoy allied status anyways - it has always been the case in war times against dominant console players (defacto Sony's PlayStation - thus always). It's coming sooner or later - and majority are already half way there through Windows. Makes too much business sense for an ambitious, monopolistic-driven Microsoft for it not to happen. Who's gonna stop them now? Who? Valve's got a dollar #, just like ABK. I mean you're literally just selling a middle-man business. Also the blinders and delusions of big/mean anti-trust have dropped like 50 ton bricks for those that were still unaware of its deterioration and current corrupt nature. Banking made that clear a long time ago. But of course, it has to happen in Gaming for the majority of gamers to actually get acquainted with reality.
Obviously the problem will be MS milking policies, grand strategic plans for cloud and subscriptions etc - Valve fanboys are not ready for that type of abuse. Considering that the main reason folks long-term attached to Valve is library attachment - well that's the hook. You get the consumer by the balls with no choice. So, consolidation around Valve on PC is the obvious play by Microsoft, and you're seeing it play out. You close ranks around Valve as the singular one-top shop and then swoop in and buy. Makes 100% sense.
All I'm seeing is the starting pains. You can see that everyday in commentary here or any other forum of gamer discussion - any hints result in a reflex reaction by the hardcore Valve fanboys to dismiss/downplay. Of course they don't want Valve to be owned by MS - they'll get fucked. We see the same behavior for all fanbases, happened to Xbox, happened to Sony fans with the PC/GAAS push (tribulations currently live!). 5 yrs from now, 10 yrs from now - don't matter. Take your pick. You can start to smell it, you can see the patterns, the wording of statements, the push. And that's one of the "positive things" (cough ehm /s) to come out of this ABK merger - the irony. No one likes giving 30% cuts away in an "open" platform and promote a singular storefront monopoly unless, of course it's not too "open" and/or........ (well you can guess the obvious). Window's Gaming is MS's baby, not Valve's. Valve is an invitee in a big house. The only question for me is if we'll have Tom Warren still around shilling to get the big tweet, Snitch style: M x V.
Solutions and options: Divestment from Steam, the sooner the better, by hedging with Epic Games Store or consoles (PlayStation due to consumption patterns, lesser extent Nintendo). Obviously both types of hedges are considered heresy to the militant PCMR so yeah, overwhelming majority will be fucked and wait till the bitter end (whole aim and point).