I started a 4.3.4 shell to connect to 4.3.4 server and received the following output:

https://gist.github.com/p-mongo/22b2d2e94e74a889cbf30649f4f6714f

This is 453 lines of output just from starting the shell.

It looks like the shell is outputting all of the server log output to the beginning of time because this is the first line in the server log file:

{"t":{"$date":"2020-03-17T23:56:19.787-0400"},"s":"I", "c":"CONTROL", "id":23285,"ctx":"main","msg":"Automatically disabling TLS 1.0, to force-enable TLS 1.0 specify --sslDisabledProtocols 'none'"}