1. does it allow the holder to travel to as many countries as a UK passport holder, albeit  time restricted.
spouse currently holds a  "Special Administrative region people's republic of china. Document of Identity for visa purposes" a china pass card (sample shown) and a non 3* HKID, to visit Mainland China. Ease of traveling to and from China is essential. spouse will receive a 3* HKID card in 2021
2.Question is, will current rights to live and work in HKG and China continue (simply by renewing) even if spouse applies for a UK spouse visa forsaking the HKID 3* and HKSAR passport?
thanks for help