Something to take into account when it comes to the Switch 2 storage space, assuming the leak is correct at 256GB.
If you have to install games to the onboard SSD, it's not going to be anything like PS4, PS5, XB1, or XBS. Those game installs are painfully slow because of the optical drive.
Switch 2 carts will be able to transfer incredibly faster than an optical drive. You're not going to have to wait 20-60 minutes while installing games. Most Nin games would likely only be a 2-5 minute wait.
If you've ever transferred a game from one SSD to another SSD, it's insanely fast. Switch 2 will be way closer to that compared to PS4, PS5, XB1, or XBS.
So for those who would be willing to carry around their Switch 2 carts, or the one's they'd most likely play, they wouldn't necessarily need (to add) more storage.