Very good explanation on your thoughts. I can agree with this. I think the main thing to pay attention to with these plans is that things change all the time. Having said that, do you still feel that there will be 2+ years before a PC release after a PS5 release? Or do you agree with up to 1 year?
I think that even if they are growing and expanding into "new" (for them) markets like game subs, cloud gaming, VR, PC, GaaS, mobile or movies & tv shows, all of them are and for at least tihs generation will continue being secondary, additional revenue sources to support their core platform and business: to sell (mostly 3rd party) games and add-ons for their console (and particularly thier digital store).
I think everything else outside core platform and business (to sell -mostly 3rd party- games for their console), including 1st/2nd party games are for them secondary stuff that helps them grow and expand their brand, revenue and profitability, but specially directly or indirectly helps to grow their core business: help sell more games and addons in the PSN store.
And for that core business, the main selling point against their direct competition are the exclusive games. 3rd party exclusives help and are a good support specially to cover certain niches not covered by 3rd parties but they are often temporal console exclusives and in any case since Sony doesn't own the company and IP they can move away for the next game, and they aren't that attached to the PS brand in terms or marketing. So the main selling point for their core business are the 1st party exclusives.
As I mentioned, blockbusters become more and more expensive so they need to find new revenue sources for their 1st party games. But remember, they are something secondary that serve a purpose: to support their main core business, in this case provide unique quality games attached to their brand that can't be played elsewhere.
For that reason, some 1st party games will remain PS exclusive forever and won't ever be released on PC, other consoles or mobile. But there is a part of PC players who will never buy a console, specially from certain key markets like Asia -specially China, India or Russia- or certain Latin American countries. And most PC gamers don't care about buying old games because they often wait for years to buy game for a very cheap price. So they found out that it's a good idea to release some old 1st party games on PC because it doesn't negatively affect their console sales. Both in terms of hardware, in total (specially PSN) game sales and particularly 1st party sales. In fact they can act as a boost to get a few extra console and game sales.
For them to sell a game copy in PC is way worse than to sell it in PS. Not only because of its revenue cut that goes to Steam or Epic. It's because if it's a PS means he'll buy in average over a dozen games more in that platform, that on average will spend X amount of extra money on hardware, accesories and services like PS+.
All this means their priority is to sell their games in PS and that PC is only as small extra for them. Their total revenue and profits are better than ever and are growing in all gaming areas, markets and business including in their 1st party games, which are selling better than ever. So they don't care if to release their PC ports sooner would give them a few million copies more. That's almost nothing for their whole business, it's way more important for them to make sure they don't damage their core business: to sell games for their console.
I think it will only make sense to release their games day one -or very soon, like a year or less after orginal PS release(not a port/remaster/remake)- on PC when that means it oesn't damage their main business, and that will happen once they have PSN store in PC (and pretty likely mobile if they put there their PSN store for mobile games skipping the 30% for Apple or Google) and is big enough to replace the console one. And that won't happen anytime soon.
First they'll need several years of slowly releasing a few PC ports and probably emulated PS1/PS2/PSP/PS3/Vita games soon. Once they have enough PC content they'll be able to open a PC PSN store with also 3rd party games. And years later once this PC PSN store becomes big enough they'll be able to sell their PC game exclusively on their PC PSN store (most PC players only buy on Steam).
And some years later if their PC PSN store becomes big enough to rival their console business -which will continue growing all these years- and didn't damage it they'll make the move that would damage it: to sell all their games day one -or almost, like less than a year- on PC.
So I think that if they'll ever release all their 1st party games, or release them day one or almost (like less than a year) won't be until maybe 10 or even 20 years from now. Until then, I think they'll stick to only port games originally released years before in PS, once they monetized them al they could there via discounts, price cuts and PS+, keeping a safe distance that now it's "at least around two years". They are happy with that distance, we know PS Studios don't plan to release PS5+PC games before at least April 2026 and that they are super happy with the sales of their existing PC ports of old games and that they'll double down on them by releasing a few more PC ports per year, not by releasing them at the same time than in console because for them it wouldn't make sense in terms of business.
I think 1 year or half a yea, or to do it will all their 1st party games, would make some PC players think they won't need to buy onsoles or games for them. I'm talking about band new PS Studios games, their original release. I'm not talking about remakes/remasters/ports of old games, or games from Bungie or other publishers they may buy.
I think Bungie and other publishers they may buy in the future wil continue releasing day one all thier games, or most of them, on PC and (maybe not day one) rival consoles. Because Sony will buy them mostly to get extra revenue and profit, to secure their content from being acquired by someone else who may want to remove them from their platform (mostly MS, Nintendo or Apple) and to get their knowledge, data and tech to improve in some key areas where they don't excel (in case of Bungie GaaS, FPS, MP), plus a way to monetize rival platforms (rival consoles + day one PC releases) while keeping their PS brand as "exclusive" and to make them exclusive for minor things (inclusion in game subs, marketing, bundles, demos/alphas, special editions, VR versions...).