There is an extended explanation on Twitter about SIE strategy, one of the points mentioned about Experimental games reaching more players in more consoles.

IMO this has more to do with LEGO games selling really well on Switch and all the experimental thing happening at SIE atm.

There are other games like Astrobot 2024 that could do well on Switch, but it seems like a PS5 exclusive for the time being.

There will be a time (not too long from now) that all manufacturers including Nintendo will start releasing their games in other platforms too.

Established Sony games that sell very well should never release day and date outside Playstation, barring maybe live service games that owe their success in large part to PC (for example a "Helldivers 3" skipping PC for a year or two may be more harming than beneficial).

Smaller games that have a chance flopping may benefit from releasing on other systems (PC on day 1, Switch a year later unless technology is a barrier), and only be considered to revert to timed or full exclusivity when they build a large enough fanbase and become "system sellers".

AstroBot is perfect for the Switch style wise, but since it's a reference galore to Playstation stuff, it may be a challenge to convert it to Switch 2. For starters, will they be swapping the in-game Dualsense with a Switch controller? You can't make it make sense! Can still be done I guess but it'll be weird and incoherent.

Very possible but I just don't see it cause Sony has plenty of games they could release  on switch that could make them a nice amount of  money but they they chose a Lego game that probably would return very a little in investment on Playstation with the license fees.

With this upcoming release, I wonder if Sony's push into mobile gaming is more about Switch, rather than Apple/Samsung.

It honestly makes more sense. Porting SpiderMan 2018 to Switch 2 has more ROI than porting it to an iPhone for example. They also don't have mobile development teams outside of Neon Koi.

Maybe they are saving those older games for Switch 2 where porting will be easier, whereas a LEGO game is not only easier to port over to the current Switch thanks to less demanding art direction and technicals, but it makes sense to port a brand new game now while there's hype and marketing behind it.

They have a bunch of ps3 games that would be easy to port on Switch and do well which has been a common thing for most developers to do on Switch, it also has 140 million user base vs switch 2 which is still unknown.

Uncharted 3

Ratchet and clank 

Sack boy 

Gow 3

Last of us 

They all would have did well enough on Switch.

Maybe they will port Bloodborne, lol.

They could do well by the beginning/middle in its lifetime, but just now that we are seeing Sony developing games for Switch. Some old games getting ported with the successor getting close, this has high chances to be forgotten and consequently a waste of time and resources.

And correct if I am wrong but isn't porting from ps3 kinda difficult because of its complex architecture? 

Indont know, the day zelda/mario and pokemon comes to playstation i presume?

Probably at least 10 years away but I think hardware specificity goes away.  Games just scale on wide variety of hardware platforms.  Consoles, PCs, mobile devices, etc.