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...).
{
    
    
    static std::vector<RNGState, secure_allocator<RNGState>> g_rng(1);
    return g_rng[0];
}
}
/* A note on the use of noexcept in the seeding functions below:
 *
 * None of the RNG code should ever throw any exception.
 */
static void SeedTimestamp(CSHA512& hasher) noexcept
{
    int64_t perfcounter = GetPerformanceCounter();
    hasher.Write((const unsigned char*)&perfcounter, sizeof(perfcounter));
}
static void SeedFast(CSHA512& hasher) noexcept
{
    unsigned char buffer[32];
    
    const unsigned char* ptr = buffer;
    hasher.Write((const unsigned char*)&ptr, sizeof(ptr));
    
    SeedHardwareFast(hasher);
    
    SeedTimestamp(hasher);
}
static void SeedSlow(CSHA512& hasher, RNGState& rng) noexcept