There was a piece in the Guardian this morning arguing that it differed by country, and in particular that in countries with vocally anti-migrant governments such as Italy, it had become less of an issue.

https://www.theguardian.com/commentisfree/2024/jan/22/crisis...

"Germany is the only country where immigration is clearly in the lead when people are asked which crisis bothers them most when they think about the future. Estonians and Poles are focused on the war in Ukraine. Italy and Portugal see the economic crisis as their biggest threat. Spain, Britain and Romania are the countries where Covid-19 is seen as the biggest trauma. And in France and Denmark the climate emergency is considered the most important crisis."