Han unification is kind of overblown. There are a few characters that look different in contemporary Japanese and Chinese fonts, but you can find pre-War Japane

Han unification is kind of overblown. There are a few characters that look different in contemporary Japanese and Chinese fonts, but you can find pre-War Japanese books that use the "Chinese" style character. There are a few characters that really shifted like 令, where the man on the street might not realize they're the same, but most are obviously the same, like 乘 and 乗. I think most Japanese would expect a search for a Japanese-style character to turn up its Chinese-style counterpart. Not doing so would be mostly a pain because you'd have to figure out how to type the Chinese one with your Japanese keyboard.