While geographical location, income, availability of oil and bonuses/penalties from the type of government are important, this game is built around a ship designer. Ergo, faction set of hulls It is a essential.
For example, just look at this variety!
...it's literally one and the same hull. Seriously, it's worse than not historical - it's boring. The hull of the battleship itself is not bad, and even a limit of 5 inches in the casemates is acceptable, you can increase them to 5.9 inches anyway and get version of Habsburg-class battleship.
The same thing about CA III hull - you can even build some kind of SMS Kaiser Karl VI even if it looks completely wrong.
But Erzherzog Karl-class battleship and SMS Sankt Georg СА completely closed, since 190mm guns in casemates are simply impossible on early AH hulls displacement of 10.500 or less.
Fast CA this is a copy paste of the old ВВ hull and with a stability of 25 plus 2'' casemates, it's just junk. Experimental CA It's not bad, but I don't see anything typical of Austria-Hungary in it like a bunch of QF 150-190mm guns in the central casemates. It's still better than nothing, I guess.
Early light cruisers are a typical set of junk, no better and no worse than many. Why the developers banned 6-inch guns in the casemates of light cruisers, I don't have any ideas.
When you enter the Dreadnought era, hulls becomes more diverse, but again, you don't get anything that other factions lack. Well, at least you have this archaic large torpedo boat, lol. By the way, this is a lot of progress, previously the player was stuck with the TB until something like 1910, when the DD2 hull appeared.
The problem with Austria-Hungary in the game, is that you don't have anything that other factions wouldn't have. At the same time, other factions have unique and interesting hulls that are interesting to play with.
Of course, sometimes it's trash like Russian and French BB pre-dreadnoughts, or a German copy paste
but in general, unique hulls are interesting. Austria-Hungary, unfortunately, lacks unique and interesting hull.