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In the long-run, but this also works both ways. On one hand the recent years have resulted in hospitals rapidly going over capacity, and nurses quitting from overwork. But nurses have negotiated higher pay in general, on top of things like hazard pay. That can lead to shortages if hospitals can't/won't afford to pay for sufficient staff. Moreover, hospitals (particularly places like US) seem to have an economic incentive to keep staff low during tighter periods because good nursing staff does not reflect billable service.

In Finland, they'll expect an average of 13% raise in wages from 2022-2025 - https://www.helsinkitimes.fi/finland/finland-news/domestic/2... . There's no reason to believe that shortages are solely owing to insufficient pay.