Bitcoin Core currently only support to using RDRAND / RDSEED instruction on x86 architecture when requiring to generate a ultra high quality random numbers. For example, a private key.
https://github.com/bitcoin/bitcoin/blob/master/src/random.h
https://github.com/bitcoin/bitcoin/blob/master/src/random.cpp

ARM later added two new similar instructions as well, RNDR (similar to RDRAND) / RNDRRS (similar to RDSEED).
https://developer.arm.com/documentation/ddi0601/2022-12/AArch64-Registers/RNDR--Random-Number
https://developer.arm.com/documentation/ddi0601/2022-12/AArch64-Registers/RNDRRS--Reseeded-Random-Number

OpenSSL also had a similar feature request on last year. (Implemented)
https://github.com/openssl/openssl/issues/15627
https://github.com/openssl/openssl/pull/15361
https://github.com/openssl/openssl/blob/master/providers/implementations/rands/seeding/rand_cpu_arm64.c

I hope this feature is also available on Bitcoin Core as Bitcoin Core also can using on ARM machine (E.g. A Mac computer using Apple silicon, Raspberry Pi...).
#if defined(__x86_64__) || defined(__amd64__) || defined(__i386__)
    
    
    if (g_rdseed_supported) {
        for (int i = 0; i < 4; ++i) {
            uint64_t out = GetRdSeed();
            hasher.Write((const unsigned char*)&out, sizeof(out));
        }
        return;
    }
    
    
    if (g_rdrand_supported) {
        for (int i = 0; i < 4; ++i) {
            uint64_t out = 0;
            for (int j = 0; j < 1024; ++j) out ^= GetRdRand();
            hasher.Write((const unsigned char*)&out, sizeof(out));
        }
        return;
    }
#endif
}
static void Strengthen(const unsigned char (&seed)[32], SteadyClock::duration dur, CSHA512& hasher) noexcept