How many software engineering job applications are just spam or unqualified candidates?

For those of you who have been actively reviewing applicants and interviewing people for software engineering positions, what percent of those that applied are unqualified, or straight up spam? Nowadays every time a job post shows up on linkedin there’s like at least 100 people that apply within the first day, though it’s easier than ever to just mass create/send (potentially fake) resumes with AI. I have been talking to a lot of well-funded startups lately who need to hire but never had the time to set up a talent pipeline. They often say that sifting through the spam and unqualified candidates is one of their biggest challenges. What’s your experience been like hiring candidates recently?