Very frequent, sometimes it's straight up lying, more often it's overstating what they did on the CV. To give you an example, when recruiting for a devops posit

Very frequent, sometimes it's straight up lying, more often it's overstating what they did on the CV. To give you an example, when recruiting for a devops positions recently, during phone screen easily 1 in 4 people with several years of AWS experience on their CV had no idea whatsoever about very basic IAM concepts (e.g. roles vs users, that explicit deny always takes precedence over explicit allow). That being said being civil and ensuring positive experience even for poor candidates is one of the fundamentals of interviewing. In the cases I described I didn't call them liars, I simply stated that for this role we expect them to independently support development teams, and that we consider IAM to be part of the fundamentals (it was explcitly listed in the job posting), and sent them some resources for studying up.