It's not a drop-in replacement (even though it tries to sell itself as such), it's incompatible in a significant number of ways and throws away part of your data.

We use Victoria Metrics in Prod for more than 6 months. It is very reliable and scalable. Victoria metrics handles more than 2B+ series in our setup without breaking a sweat.

No, it's better. You can focus on the thing you're measuring rather than the bloody platform.

They made some pragmatic optimizations by dropping part of the data where it mostly doesn't matter. Who's actually affected by this? 0.01% of users?