Personally, in any case, this experience does not prevent you from looking for a job. On the contrary, you may be given priority because of your study abroad experience. So I suggest writing, because this is your precious life experience and experience after all. People ask many reasons for dropping out of school, but you can ignore the answer. The employer won't ask you the specific reason, as long as you don't get fired, the employer won't mind.

On your resume, just write down what you studied in which country and what you learned. If there is a column about whether you graduated, you can write down your studies, hehe! Because employers value your experience and ability more than your certificate ~! ~