The law has not changed, you can still not claim a spouse as a dependent.
In the old days, you could claim your spouse’s exemption on your married filing separately return, if the spouse had no gross income, could not be claimed by someone else as a dependent and was otherwise not required to file a return.
But personal, dependent and spousal exemptions were eliminated, effective 2018, so there is no loner a deduction to give you, even though your spouse "qualifies".
I've brought this to the attention of TurboTax.
It appaers that
