High concurrency across pipelines

[HelgeG]

Currently the session tag for high concurrency is only used within a single pipeline, and not across multiple pipelines. So if you have two pipelines with notebooks there will be a spark startup time for each of them, even if they have the same session tag set. All pipelines with the session tag should be able to use high concurrency!

https://learn.microsoft.com/en-us/fabric/data-engineering/high-concurrency-overview