Thanks for bringing that up. It was either Lavrov or Putin that commented recently on Finland and Sweden joining NATO and it was said RF does not like it, it will respond (as in treating it as unfriendly) but it does not have security concerns, unlike Ukraine where it does.
For example, I read elsewhere, that Finland was treated well, despite the fact that it participated in siege of Leningrad, where it was siding with the nazi Germany, for 872 days. Some described this siege as a genocide:
After WW2 and after signing neutrality treaty with USSR, Finland prospered in trading with them.
Now, I take Putin/Lavrov's word at face value that Ukraine is a different kettle of fish and Boris considers it as propaganda. From my readings, he is wrong. The annoying thing is that he doesn't qualify his reasoning.