There used to also be the interesting prospect of OpenTraffic: https://github.com/opentraffic . Unfortunately the main website appears to be down and the GitHub hasn't seen recent contributions, so I'm guessing the project is dead in the water :(

I like the idea of Organic Maps in general, but using it in Hong Kong is awkward; not only because in many cases it uses Pinyin Mandarin place labels (which locals never use) but also because requires me to download 200+ MB of “China Guangdong”—a large but, critically, distinct in every de jure and de facto sense place beyond a border restriction with no free travel (considering in the case of, say, Kaliningrad, with the same situation and even smaller/sparser place, I would get a separate download). For me it raises questions about who exactly is behind the app and why should I trust its privacy promises.

Can't you just write an Github issue and suggest splitting of these areas? I remember them splitting some areas in the past (because map data are getting bigger and bigger)