For Europeans this is fucking real. There's already a war in Ukraine. There are enough hints that Putin is actively destabilizing Europe.
Russia doesn't have the capacity to do much militarily aside from bully its neighbors. Russia is a strong regional power, and that's all they've been for decades. The war in Ukraine won't have any significant effects that the other wars Russia has had with its neighbors didn't have (Georgia and the Chechen wars most notably) as far as greater Europe is concerned.
The notion that the Ukrainian or Syrian conflict will spill over into active fighting in other parts of Europe is absurd. Countries have been trying to destabilize one another for thousands of years, and what Russia is doing now is child's play compared to the larger conflicts during the Cold War. Those didn't lead to Europe being overrun by the Russian bogeyman either.