Full-time means the same it would mean for a paying job. Advanced refers to a standard of learning which us obviously subjective. Technically, someone enrolled would be in kollel, the same way someone on the books at a company is technically an employee.
Those are not the kollelim women want their husbands to be in.
I don’t think prospective kollel wives want to get married any significant amount more than girls (from the same community) who want to marry working boys do. There’s plenty of agmas nefesh for these girls.