"It's a predidiction thread"
I know.

"plenty of PC's are being bought with ONLY gaming in mind"
No they don't. Of course they want to play. but even if they buy it for that, thay also will "surf the net" (how 90s!), or do ChatGTP, or listen Spotify, or do a videochat, or see/listen/comment youtube videos and TikTok crap, or use Twitter or any other social net... a PC is a much richer experience than just for play, as a console basically is today (years ago, it seemed consoles would be a more "multimedia" and "an online social experience" machines. They finally didn't. Basically because security issues exploits (tech and human ones) being a problem for the companies, and those high expectations about what they could do were just finally covered by the smartphones. So, no need anymore to sell those tales. Well, maybe you can still see a movie there... but not much more).

And of course, kids will do their homework in the PC, using an Office to make essays, slides for presentations... or whatever they do. Not in the PS5.

"But why do you not think PS5 Pro is not a premium optimised console experience?"
Because it is not. PS5 Pro is not a new generation, so it CAN'T be an optimised experience: you will play the same games you can play in a normal PS5, paying much more money to do it, and what you will get is a slightly better experience using basically the help of IA and a very convoluted bunch of technologies trying to squeeze a game... developed for an inferior hardware. Do not expect nothing really new. Perhaps better framerate because brute force of the new CPU/GPU, and perhaps some IA escalated new resolution... with some little artifacts now and then. 

Only a new generation can really show a difference. The optimisation is to make a game for an specific hardware in mind, and do it the better you can. Not an artificial "improvement" using better hardware. If the PS5 Pro was a new generation (that is... with games not compatible with the old PS5), the very same hardware of PS5 Pro would have had much better games (at least, in tech aspecs), precisely because those games could have been optimised for it. But being only a "revision" for PS5, its possibilities are capped since day 1 (Doing an extreme analogy: If I play Quake 1 in a new PC, i will get the Quake 1 from 1996).

You don't understand what the word optimised actually means.