This will be dismissed by the usual crowd as whataboutism and muh Xbot.
Sony are in a very similar position to Microsoft, the key difference is Sony still selling consoles. Both have the worst software output in their history, both flapped around with live service and GaaS, Sony dabbled in PSN now while Microsoft went for gamepass. Both have rumoured to be making a proper handheld, not whatever the fuck portal was supposed to be.
A shift is happening in the industry and for some reason both Microsoft and Sony are playing off of the same handbook. Maybe it's an American/Californian thing?
I don't think you're
completely off-base here TBH. Like you, I've also said that MS and SIE are basically mirroring each other, but that was WRT their PC strategy. And the only difference there being, that SIE still has stagger windows between their console & PC ports. The other difference is they don't have timed PC exclusives the way Microsoft does (Flight Sim, Gears Tactics, Towerborne, Ara 2 etc.). Outside of those two areas, their PC strategy is more or less exactly the same.
On the software front....it depends on how you look at it. The overall quality of SIE's releases this gen have ranged from excellent (Astro Bot, GT7 etc.) to great (HFW, HD2, Rift Apart etc.) to good. On a technical level they haven't put out any truly bad games, tho their games have had more bugs Day 1 this gen than they ever did last gen (ironically right as they started going more multiplat...just a coincidence, right?).
However, in terms of overall software innovation, I think there's grounds to claim this gen has been one of SIE's safest, by far. In terms of internal 1P or 2P exclusives it's mainly been either sequels to very well-established franchises or trend-chasing GAAS. In terms of new non-GAAS IP we've mainly seen games in very well-established soulslike genre space or samurai-themed games with soulslike templates. All of the things I just mentioned are...very safe, especially when you get into the AAA tier of output.
That's not even getting into the remakes and remasters, because the only one so far I feel that's justified its existence from a major/obvious technical & QOL improvement POV, is Demon's Souls remake, and that launched with the PS5. There have been exceptions like Returnal, but they're few and far between. Ideally, you'd have wanted SIE to have this "safer" approach in the first couple of years for the console, where the goal is to solidify a strong core install base quickly. That way, you've got breathing room to get more experimental with software output in the latter years of the console lifecycle. Now the same thing could be playing out this gen, and I'd certainly say games like Death Stranding 2 fit that bill (even if it's also in a way a sequel), but I don't think this gen is going to be long enough to make players "feel" that happens, given the length of time it takes to make AAA and even some AA games these days.
And that's where I think SIE's big focus on GAAS early on this gen is going to hurt them. They had almost all of their 1P non-GAAS studios working on some form of GAAS project. These studios are finite in size and resources, so if the priority was to get a GAAS up-and-going, that means their non-GAAS title(s) were probably being worked on at a slower pace. And of those, the "safer" picks would probably be the ones getting majority of time & resources. There's also the question of SIE's budget allocation between GAAS and traditional titles. To be blunt, it sucks. Allocating 60% of your budget to GAAS is really going to constrain traditional game output no matter what, and it's not like SIE are doubling their budget amounts from FY to FY.
So yeah on the note of software...I can
definitely see how from a certain POV this gen could be argued as SIE's weakest, both in 1P (as internal and 2P via 3P partnerships) and even 3P exclusivity (it's mainly only been mainline FF titles and that seems to be ending, with the occasional surprise like Stellar Blade but as brief timed exclusives).
And you're also right, in that there's a
very strong defense force who will adamantly
not admit to any of this being true, unfortunate as it is for them.