did you tick the find recruiter option?
What i would do if i was in your shoes:
download the list that has the job titles and upload to chatgpt and ask to look at the job titles to give me the list of the possible department that job may fall under and the job titles of those in that department
then in your find people search find the people with the job titles gpt gave you and still pick out relevant decision-maker titles like "Director, VP, Head of, Manager, Lead"
