Apache 2.4.37 from Apache Lounge supported TLSv1.3, so I enabled TLSv1.3 on my Web server which runs on Windows7 HP SP1 32-bit. I only changed from SSLProtocol -all +TLSv1.2 to SSLProtocol -all +TLSv1.2 +TLSv1.3. I did nothing about SSLCipherSuite Directive because the SSL_CTX_set_cipher_list page says ‘An empty list is permissible’.
The default value for the this setting is: “TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256”
Here is the results before and after of SSL Labs Server Test.