The rules changed recently.  The new answer to the residency question is "what do you want it to be?"

See the Veterans Auto and Education Improvement Act of 2022, Sec 18.

https://www.congress.gov/117/plaws/publ333/PLAW-117publ333.pdf

(3) ELECTION.—For any taxable year of the marriage, a
servicemember and the spouse of such servicemember may
elect to use for purposes of taxation, regardless of the date
on which the marriage of the servicemember and the spouse
occurred, any of the following:
(A) The residence or domicile of the servicemember.
(B) The residence or domicile of the spouse.
(C) The permanent duty station of the servicemember.