I grew up in the north of Sweden but studied in Mannheim, Germany. Winters in Germany are miserable. If you get snow in winter you will perceive a 2.5-hour day as a lot brighter than it is. Mannheim was like a dystopian crime novel from a 1970s Britain in comparison to my home town, despite almost 4x the actual sunlight in January.

I am not saying "move to north Sweden". Just that amount of daylight is not everything.