Comment by divyekapoor

Not at all! All of these are real. ETag: expiry tag on HTTP(s), SAML: auth protocol, CSP: constraint sat, BGP: border gateway protocol, haproxy: load balancer, helm: k8s package manager, SOCKS5: http proxy protocol, sameSite/httpOnly: configs for HTTP security… and so on.

Never mind. The answer before me did a much better job.