> And both the petitioner and justices seem to agree that ANY data would be then up for grabs by the government (without a warrant) if it is stored in the cloud (including email, docs, photos, calendar, business records, etc).

You must have misheard this as this is not true country wide (see US v Warshak) and in practice the government treats these as needing a warrant because of that and the time requirement in the Stored Communications Act (and any major provider will explicitly refuse handing over content data without a warrant).

Gorsuch in particular thinks the Third Party Doctrine is bullshit and is happy to write that down (like in Carpenter) and today seemed to be trotting that out again (though I only read the beginning of arguments).

No, I did not. Listen for yourself.

Later the same question was put to the government, and they admitted the same: under the government's theory a warrant would not be needed.