For a beginer id say its less kyc vs non kyc, more about how long coins sit there. Swap and pull to your own wallet asap. Non kyc has zero recourse if they vanish, atleast kyc leaves trail.
An exchange can also collect your data and also disappear, it does not mean you'll get your money back. And talking about leaving a trail, it actually leaves one for you to be attacked through phishing, or maybe even a $5 wrench attack.
The bottom line is that KYC or NO-KYC does not determine the safety of a platform, that is a privacy issue, which is separate from security. If you want to swap crypto to crypto, then there are a few good NO-KYC platforms you can find in the forum and one of them is just below, in my signature space.