[mbed-tls] Global entropy required for TLS 1.3?

The MbedTLS generally allows you to pass in an RNG callback for each function that requires it. This is even explicitly called out in the 3.x migration guide:

The RNG parameter is now mandatory for all functions that accept one

https://github.com/Mbed-TLS/mbedtls/blob/a7d454cec2/docs/3.0-migration-guide...

However, TLS 1.3 support requires MBEDTLS_PSA_CRYPTO_C

https://github.com/Mbed-TLS/mbedtls/blob/a7d454cec2/include/mbedtls/check_co...

And MBEDTLS_PSA_CRYPTO_C requires MBEDTLS_ENTROPY_C or MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG

https://github.com/Mbed-TLS/mbedtls/blob/a7d454cec2/include/mbedtls/check_co...

This seems to go against the general rule that MbedTLS doesn't require any global state. Was this done intentionally?