AVX512 is supported since Zen 4, meaning all Zen 4 CPUs are x86-64-v4.
x2APIC and AVX512 are present in 'Processor Programming Reference (PPR) for AMD Family 19h Model 11h, Revision B1'.
If a RAW dump is containing for instance 256 logical CPUs (2 sockets with 64 cores and SMT), they should not be considered as a 128 cores CPU with SMT.