Ask What are the good ways of avoiding bad freelance clients?

[SuperAffiliateX]

I'm new to freelancing and worried about bad clients. I hear stories about people who don't pay, keep changing requirements, or disappear after work is done. I don't want to waste time or get scammed. But I don't know how to spot red flags before taking a job. Should I ask for upfront payment? Should I avoid certain platforms? I just want to work with honest clients who respect my time. What are the best ways to avoid bad freelance clients?