Won't be able to update until tomorrow, but this is an idea that just struck me: Art.
The Renaissance is quite different from what it was OTL as evidenced by the WoTL, so it stands to reason that the art that was produced during the period would be quite different as well. With the Church being much more puritanical than OTL (leaning more into the Deuservii than Savonarola's followers, though), it stands to reason that they would be less willing to finance the neoclassical paintings, statues and mosaics of the historic period, and their influence would mean that nobles would be less willing as well. However, I think that there would still be an impetus for art to be commissioned, so I think that the dominant form of art in the latter half of the !Renaissance would be long and intricate songs, many of them with religious themes (neopsalms, anyone?).