Is there any way to limit flow concurrency without affecting which agents a flow can be deployed to?

Not really as labels are the only mechanism but the flow labels just need to be a subset of the agent labels

That's unfortunate, do you know if this will be the same in Orion? If so, how can I create a feature request?

In Orion, the limit is applied to a tag, and then the way agents take work has been changed so this is now doable because the old system was inconvenient

Great, thank you