Bild makes the claims. [Google translated below]
Schweden ist heute das gefährlichste Land in Europa.
[Sweden is the most dangerous country in Europe today.]
In der EU werden durchschnittlich acht Personen pro Million Einwohnern Opfer tödlicher Gewalt. In Schweden lag die Zahl 2020 bei zwölf Personen pro Million Einwohnern.
[In the EU, an average of eight people per million people are victims of fatal violence. In Sweden, the number in 2020 was twelve people per million inhabitants.]
In der EU sterben durchschnittlich 1,6 Personen pro Million Einwohnern an Schussverletzungen – in Schweden sind es vier Personen, also fast dreimal so viele.
In the EU, an average of 1.6 people per million people die from gunshot wounds - in Sweden the figure is four, almost three times as many.
While the headline says 'Europe' it's clear from the article that this refers to the EU.
The source mentions 'study', but does not specify which study this is or who conducted it. My best estimate could be ones mentioned in Wikipedia (citations 2 and 16). However, these are in Swedish, about 6 months old and unknown sources to me. Thus I remain skeptical.
Edit:
Is the claim 'Sweden is the most dangerous country in Europe [EU] today' accurate?
It's pointed out that question might be understood in too wide context. Revisited question:
Is the claim 'Sweden is the most dangerous country in Europe [EU] today [when it comes to violent crime]' accurate?