Do they still use swastikas on their fighter jets in Finland?
Currently, the Finnish Air Force uses a white-blue-white roundel. They haven't used swastikas as plane insignia since 1945 for reasons that should be obvious.
WW2 era gear was, as far as I can remember, all prop engines. I need to check my literature but I'm pretty sure the swastikas have never been used in the jetplane age.
The comment may be referring to the fact that several FAF insignias continued to use swastika motifs for a frankly surprisingly long time. (Common apologia you probably hear was "well that was because of Eric von Rosen, the symbol didn't really have anything to do with Nazis"... well, von Rosen did start up National Socialist Block in Sweden after this happened, so take that how you will.)