I have two question. in "Phasing out third-party cookies"! :)

[YoungHyunLee]

hello,
Dear Google Lab team.

I have two questions.

1. (Phasing out third-party cookies) So. Third-party cookie phasing out, i'm understand.
but in "Web Storage API", localStorage used third-party data also phasing out?
(cookie and storage same workflow?)

ex - suppose) origin domain - a.com(first).
ex1) use JS(third), save data for b.com(third) iframe of localstorage
=> like, b.com iframe JS, localstorage.setItem("myBData1", "blob");
or
ex2) use JS(first), open popup and save data for b.com(third)
=> like, a.com JS, window.open("b.com/saveData?sData=yyyyMMDD_hhmmss"), "bdomainPop");
and b.com/saveData page JS, localstorage.setItem("myBData2", "yyyyMMDD_hhmmss");

then,
in 2024(third-party cookie phasing out),
(b.com origin domain page) possible see data "blob" or "yyyyMMDD_hhmmss"?
like, localstorage.getItem("myBData1") or "myBData2".

2. (Phasing out third-party cookies) Several documents indicate that "Third-party cookie phasing out", same understand.
Then, is first-patcy cookie right to remain in Web?

Please, ask my questions...

Thx! for your reading.