anything that is FIPS compliant will use one of the mandated DRBGs, there are two others besides CTR_DRBG.
BoringSSL implements CTR_DRBG with AES for example: https://boringssl.googlesource.com/boringssl/+/fed35d32245ee...
BoringSSL implements CTR_DRBG with AES for example: https://boringssl.googlesource.com/boringssl/+/fed35d32245ee...
it's a source of a lot of online discussion as the compliant algorithms aren't the best available. here's to bureaucracy!