[dengolius]

Thanos/Mimir community doesn't help to resolve configuration routine or even bigger resource consumption for a huge setup.

[uaas]

Bigger resource consumption of what exactly? Leaf Prometheus instances or the Thanos/Mimir stack compared to VictoriaMetrics? Have you seen a large scale migration between the two, with actual numbers?

[valyala]

A few of interesting real-world large-scale migrations are highlighted at https://docs.victoriametrics.com/casestudies/