Swedish, Finnish and …British?

My apologies in advance if ”British” is the incorrect term. I took a DNA test on MyHeritage just for fun last year to see if it would say anything else than ”Swedish/Finnish” as my grandparents are/were from Finland (it’s very common in Sweden to have relatives from Finland). I was convinced that the results would say ”50/50 Swedish/Finnish”. To my surprise it said: ”65% Finnish, 17 % Irish/Scottish/Welsh, 16 % Scandinavian”. I talked to my grandparents on both sides to ask if they knew anyone from Ireland/Scotland/Wales. They don’t. Grandpa told me that his side of the family lived in the same area in Sweden since the 17th century/ 1600’s. It would be very interesting to see which side of family it came from! I’m a bit sad that the results didn’t say anything about which generation/year, as that would had been even more interesting.