廣東話基本上係用漢字但係台灣嘅情況有啲複雜。可以睇下 https://en.wikipedia.org/wiki/Written_Hokkien https://en.wikipedia.org/wiki/Written_Hokkien (Written Cantonese basically uses Hanzi,

廣東話基本上係用漢字但係台灣嘅情況有啲複雜。可以睇下 https://en.wikipedia.org/wiki/Written_Hokkien https://en.wikipedia.org/wiki/Written_Hokkien (Written Cantonese basically uses Hanzi, but the situation of Taiwanese is more complicated [or maybe I don't understand it enough]. You can check out the link above.)