The history of W in Finnish is interesting (for some values of "interesting"). Mikael Agricola [1], a Lutheran clergyman, essentially created literary Finnish from scratch in the 1500s (before that, Finnish had existed solely as a spoken, vernacular language, with official business conducted in Swedish (or German), and until the reformation, the language of the Church had of course been Latin).
Agricola had to create an alphabet for Finnish, and naturally borrowed heavily from Swedish and, to a lesser extent, German. His orthography was not particularly self-consistent, and for example the /u/ and /v/ phonemes might be written as either "u", "v", or "w" in Agricola's works. For example, the word uusi (/u:si/; "new") was written by him as "wsi", indeed using "w" as a literal "double-u". The /w/ sound did not exist in spoken Finnish.
Over time, Finnish became the almost entirely phonetic language that it is now, with letters matching phonemes essentially one-to-one. /u/ was regularized as "u" and /v/ as "v". As /w/ still doesn't exist, the letter "w" is very rarely used, mainly in some surnames as an alternative spelling of "v"; phonebooks used to collate "v" and "w" as the same letter. In loanwords "w" becomes "v" (e.g. "whiskey" -> viski). Finns with a thick accent (see "Rally English" [2]) tend to pronounce the foreign /w/ as /v/ when speaking English, similar to Germans.
Today, imitation of Agricola's orthography is the Finnish version of "ye olde English", used for humorous or intensifying effect. For example, the word vanha "old" might be spelled "wanha" in the name of an antiques shop. "Wanha" also used to be a standard "old news" reply on IRC, especially to links that had already been pasted by someone (and this became so annoying on some channels that it became a kick-worthy offense).
Maybe it's just me, but I've never met a German in real life who turned 'w's into 'v's. German has about a zillion vowel sounds and a sound like a 'w' shows up in words like 'Bauer'.
German writes the 'v' sound as 'w' but there seems to be this very odd pervasive assumption that Germans can't learn to approximate how foreign letters are pronounced.
Finnish W is inherently tied to Swedish W. Historically, V and W were the same letter, and they could be used interchangeably. W was generally preferred in Fraktur and V in Antiqua. In the 19th century, the orthography changed to use V everywhere, except in some proper names. This happened a bit earlier in Swedish than in Finnish. And, recently, V and W became separate letters. In 2006 in Swedish and (arguably) in 2022 in Finnish.
Yes, thanks for the addition! I though about mentioning the link to Swedish W but wasn’t fully sure about the details.
Ye is really Þe (Þ = thorn) and it seems that printers, back in the day, used y instead, probably to save money. So it was probably considered old school when printing became popular and wasn't worth getting excited about.
Agricola means farmer in Latin, is that an incidental? You mention Lutherian, so perhaps an affectation.
His father was a farmer. Commoners usually didn't have family names at the time (except in Eastern Finland), but he needed one when he went to school.
Yes, I know what ye is :) Similarly, the "olde Finnish" is usually not exactly historically accurate.
Agricola was born Mikael Olofsson/Olavinpoika, i.e. a simple patronymic surname. He assumed the Latin name when he started studies in a Latin school [1] in Viborg/Viipuri (now Vyborg, Russia). He became interested in the Reformation and Renaissance humanism; later, as an ordained priest, he was sent to Wittenberg and studied directly under Luther himself. He was instrumental in executing the Reformation on the Finnish side of Sweden (then just a Swedish province; Finland as a political or geographical entity didn't really exist yet). Among other deeds, he translated the New Testament to Finnish from Luther's German translation (and besides the whole orthography, had to invent lots of new words in the process).
[1] https://en.wikipedia.org/wiki/Latin_school