The fun thing about finnish is that formal written finnish is technically speaking a distinct dialect that's different from all spoken dialects, and while fiction is almost always written with written finnish, many authors will have the dialogue spelled out in spoken dialects to give the text more "real", naturally flowing flavour.
Someone speaking written finnish in casual day-to-day life usually means one of two things - either the speaker is somewhere on the autism spectrum (not a diagnostic criteria, but one of those "I've never seen a neurotypical person do that" things) or they speak finnish as a second language. And I don't know how to say this without sounding condescending, but I love hearing it, it's so charming. Like you stepped straight out of a 19th century play.
Standing in the line to a public bathroom, there's a man talking on the phone, speaking in finnish with a distinct accent, going "I understand, darling. Love. My love. Beloved, I understand. I understand. I will make my way there. Yes, I understand. I will make my way to you. Two hours."
And now that I wrote that out, I can see that there is no way to express in english just how delightfully formal and "writing a love letter with ink on paper to your beloved promising to come back from the war" it sounds when someone in finnish says "rakkaani, minä ymmärrän, minä tulen luoksesi."
