they are just vibing with the aesthetic lol, the rest of the world and some vampires dress just like modern times. It’s also mentioned by the merchants setting up shop in Vortec if you neet them (they are pretty noticeable due to their fashion)
As for technology outside of Ignia, think 1910-1920s but 1890s in terms of travel. Lamps/lightbulbs, radio, radio, heating,tv is all there but they haven’t invented planes or cars. Steam engines n such r the norm when outside of large cities.
Ignia being exempt cuz they still have some rune ink/alternative to it so they r advanced in comparison