Option to further reduce logging

[Salmonwastaken]

What would you like to be added?

Ideally I would be able to limit logging based on severity, either by directly specifying a minimal severity or setting an appropriate verbosity level through the v flag.

For example, only logging WARN or above severity level would be an ideal option (for my use case)

Why is this needed?

I'd like this functionality to reduce logging load on my systems.

Currently the lowest possible verbosity/loglevel still seems to dump INFO level logging which is generating an unreasonable amount of (for my use case at least) GET 200 logging & other INFO level logging

Although #7618 (comment) mentions the ability to lower logging through setting the v flag, in practice this only seems to allow you to generate even more logging by setting a higher verbosity, rather than providing options to lower it.