system
A chat on subreddit /r/me_irl
human
I get it's slightly annoying, but it's so they can filter applicants accordingly then look at resume if you fit the criteria.   


I've never hired, but I'm close friends with several who have, and the amount of completely unqualified people that will throw in a CV to tick off a Universal Credit box or just for kicks is odd.
gpt
Should ask for resumes / CV after application then. Resume is pointless until interview, so why ask for it if you have an application