Thanks for your reply! There's an article on Boundless Immigration that suggests that it does count for a green card application, although I don't know if it's the same for the K1, so I just wanted to get some confirmation on that.
"Yes, full-time student enrollment and unpaid internships are considered types of employment for green card application purposes."
https://www.boundless.com/immigration-resources/completing-your-employment-history-on-a-green-card-application/#:~:text=Yes%2C full-time student enrollment,your job title or occupation.
Assuming I shouldn't put "student", would being unemployed be a red flag?