Compared to Linux or OpenBSD, is Plan9 as "secure", i.e. randomization of tcp seq numbers, cryptography, authentication, mitigation of spectre and hardware vuln

Compared to Linux or OpenBSD, is Plan9 as "secure", i.e. randomization of tcp seq numbers, cryptography, authentication, mitigation of spectre and hardware vulnerabilities etc. Or it needs some improvements? Meaning, if I had a simple C application that could easily be ported to plan9 but it has to be super secure, would 9front be advisable, or it's better to stick with Linux or OpenBSD for the time being?