This is probably going to be a bit out there as a post, but I had a small realisation when looking through oldpuck's massive Digital Foundry note:
[In reference to A Plague Tale: Requiem's findings]: (...) the GPU isn't all that matters. Plague Tale is rough on the GPU, sure, but it's famously CPU limited. Pairing even this weak GPU with a modern CPU and storage solution, and suddenly 9th gen exclusives become viable
This quote got me thinking a bit. How many current games are still releasing for PS4/Xbox One? I decided to look at games that released or are due to be released this year and found... quite a lot. There are naturally exceptions to this, mainly found on console exclusive titles like Final Fantasy 16, Spider-man 2, Hi-Fi Rush (edit: this game runs on a Laptop 1050ti), Redfall (edit: badly optimised) and Starfield, but there's a lot of notable releases that are still making it to PS4/XBO despite being very taxing. God of War: Ragnarok from last year is a pretty blatant example, but Resident Evil 4, Like a Dragon Ishin/The Man Who Erased His Name/Infinite Wealth, Assassin's Creed Mirage, Lies of P, Armoured Core 6 and so on.
So, I started to ask "Why are some games not releasing on PS4?". The easiest games I noticed that were exclusive was with Spider-man 2, Dead Space Remake and Baldur's Gate 3. Doesn't take a genius to realise that all three of those games are taxing graphically, but the other problem was to do with the SSD.
(Gamespot interview with Dead Space Remake devs): "Campos-Oriola went on to mention that the new SSDs in the PS5 and Xbox Series X|S consoles allow the game to "load and unload really fast." There won't be any loading screens, it seems.
"Our intention is to offer a fully unbroken experience, it will be an uninterrupted sequence shot, from the start screen to the end credit, without interruption," the developer said"
There are also some other cases with "we didn't want to be restricted". Alan Wake 2 and Forspoken both are notable for their use of Ray-tracing.
(Delta note: This is the only time I'll ever compare Forspoken to Alan Wake 2, I feel dirty just talking about it) Final Fantasy 16 is also in a similar boat (according to Wikipedia. I can't really check the source because it's from Famitsu and Google Translate is jank), but I don't know enough about the game to make a comment as to why.
So, how would the Switch 2 counteract this?
Well, the Switch 2 has Ray-tracing capabilities on-par with the PS5 and can still reach 30fps, in addition to being able to achieve fast loading times (see: Breath of the Wild tech demo)...
So this is basically a long-form way of saying that we probably shouldn't worry about the lack of third-parties on Switch. There are loads of games still coming to PS4, there are a lot of games where the limitations come down a specific feature of the PS5/XSX, and that the Switch 2 doesn't limit the abilities of the game's ambitions, especially with UE5 games that are up and coming (according to the DF team). I'm also happy to say that the ambitions of Nintendo will likely be accomplished given the tools that they're being given with this device, especially since most of Nintendo's games don't strive for realism as much as they strive for gameplay.