Ok so there is a french developper who works for portage of Xbox and Switch's games who talked about all these : https://www.youtube.com/live/2JupUp-2M3k?si=48TNUarjnDrubwJD&t=3976
He was a bit harsh but basically he was saying not to believe in a "magic" technology. On the "transitions" kits for the new Switch, the power was that of an Xbox One. Beware of hype, it can be damaging in the end.
But he added that this remained his opinion. He repeated it several times.
On another topic they talk about how Apple could create a great hardware in this category if you are interested (and if you understand french).
I'll amend your comment there because he's also basically talking the historic of NVdia trying to buy ARM which are the ones producing the mobile chips we see in the Switch.
They don't have the "copyrights" for using the Tegra line anymore which lead him to believe the Switch 2 to be boasting a Xavier chip from what he allegedly saw.
Indeed, beware of anything that runs on the internet because the only true answers we'll get are the ones we'll have once we actually see the Switch 2 for real.
Switch Friend Code : 3905-6122-2909