Right now I'm using prometheus and grafana to monitor around 8k database servers (sql server too BTW). We have pricing applications using influxdb. Docker. Openstack. Minio. We also have mattermost.

All of this in a conservative big bank. My friends in the banking sector tell the same story.

True there are lots of c# enterprisey web apps.

However given the amount of boilerplate you describe, I cannot understand how such useful and reliable tools can be delivered in Go.

A hint:just because a language is not to your liking, it does not mean that it is not useful, performant and reliable.